From: Martin Ling <redacted>
Date: Thu, 19 Mar 2015 21:37:33 +0000 (+0000)
Subject: Simplify channel creation.
X-Git-Tag: libsigrok-0.4.0~600
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=5e23fcab889c6;p=libsigrok.git

Simplify channel creation.

We always follow sr_channel_new() with a call to add the channel to the sdi.
Tidy up a bit by adding this functionality to sr_channel_new() instead.
---

diff --git a/src/device.c b/src/device.c
index 9dd2201e..1c84a7df 100644
--- a/src/device.c
+++ b/src/device.c
@@ -42,7 +42,8 @@
  */
 
 /** @private
- *  Allocate and initialize new struct sr_channel
+ *  Allocate and initialize new struct sr_channel and add to sdi.
+ *  @param[in]  sdi The device instance the channel is connected to.
  *  @param[in]  index @copydoc sr_channel::index
  *  @param[in]  type @copydoc sr_channel::type
  *  @param[in]  enabled @copydoc sr_channel::enabled
@@ -50,8 +51,8 @@
  *
  *  @return A new struct sr_channel*.
  */
-SR_PRIV struct sr_channel *sr_channel_new(int index, int type,
-		gboolean enabled, const char *name)
+SR_PRIV struct sr_channel *sr_channel_new(struct sr_dev_inst *sdi,
+		int index, int type, gboolean enabled, const char *name)
 {
 	struct sr_channel *ch;
 
@@ -62,6 +63,8 @@ SR_PRIV struct sr_channel *sr_channel_new(int index, int type,
 	if (name)
 		ch->name = g_strdup(name);
 
+	sdi->channels = g_slist_append(sdi->channels, ch);
+
 	return ch;
 }
 
@@ -227,13 +230,10 @@ SR_API struct sr_dev_inst *sr_dev_inst_user_new(const char *vendor,
  */
 SR_API int sr_dev_inst_channel_add(struct sr_dev_inst *sdi, int index, int type, const char *name)
 {
-	struct sr_channel *ch;
-
 	if (!sdi || sdi->inst_type != SR_INST_USER || index < 0)
 		return SR_ERR_ARG;
 
-	ch = sr_channel_new(index, type, TRUE, name);
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, index, type, TRUE, name);
 
 	return SR_OK;
 }
diff --git a/src/hardware/agilent-dmm/api.c b/src/hardware/agilent-dmm/api.c
index 374c206a..7cfb69d8 100644
--- a/src/hardware/agilent-dmm/api.c
+++ b/src/hardware/agilent-dmm/api.c
@@ -84,7 +84,6 @@ static GSList *scan(GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *l, *devices;
 	int len, i;
@@ -150,8 +149,7 @@ static GSList *scan(GSList *options)
 			sdi->conn = serial;
 			sdi->priv = devc;
 			sdi->driver = di;
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-			sdi->channels = g_slist_append(sdi->channels, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 			drvc->instances = g_slist_append(drvc->instances, sdi);
 			devices = g_slist_append(devices, sdi);
 			break;
diff --git a/src/hardware/appa-55ii/api.c b/src/hardware/appa-55ii/api.c
index 771a686c..b9f767d2 100644
--- a/src/hardware/appa-55ii/api.c
+++ b/src/hardware/appa-55ii/api.c
@@ -55,7 +55,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_serial_dev_inst *serial;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct sr_config *src;
 	GSList *devices, *l;
 	const char *conn, *serialcomm;
@@ -110,10 +109,8 @@ static GSList *scan(GSList *options)
 	sdi->priv = devc;
 	sdi->driver = di;
 
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "T1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "T2");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T1");
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "T2");
 
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
diff --git a/src/hardware/asix-sigma/asix-sigma.c b/src/hardware/asix-sigma/asix-sigma.c
index 0e6180cb..e1355e9f 100644
--- a/src/hardware/asix-sigma/asix-sigma.c
+++ b/src/hardware/asix-sigma/asix-sigma.c
@@ -325,7 +325,6 @@ static int init(struct sr_context *sr_ctx)
 static GSList *scan(GSList *options)
 {
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	GSList *devices;
@@ -383,11 +382,9 @@ static GSList *scan(GSList *options)
 	sdi->model = g_strdup(USB_MODEL_NAME);
 	sdi->driver = di;
 
-	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+	for (i = 0; i < ARRAY_SIZE(channel_names); i++)
+		sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 				    channel_names[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
-	}
 
 	devices = g_slist_append(devices, sdi);
 	drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/hardware/atten-pps3xxx/api.c b/src/hardware/atten-pps3xxx/api.c
index b72eeb4a..1eafaaff 100644
--- a/src/hardware/atten-pps3xxx/api.c
+++ b/src/hardware/atten-pps3xxx/api.c
@@ -173,8 +173,7 @@ static GSList *scan(GSList *options, int modelid)
 	sdi->conn = serial;
 	for (i = 0; i < MAX_CHANNELS; i++) {
 		snprintf(channel, 10, "CH%d", i + 1);
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, channel);
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel);
 		cg = g_malloc(sizeof(struct sr_channel_group));
 		cg->name = g_strdup(channel);
 		cg->channels = g_slist_append(NULL, ch);
diff --git a/src/hardware/baylibre-acme/protocol.c b/src/hardware/baylibre-acme/protocol.c
index 3ceee6c1..461a7b5e 100644
--- a/src/hardware/baylibre-acme/protocol.c
+++ b/src/hardware/baylibre-acme/protocol.c
@@ -201,13 +201,12 @@ static void append_channel(struct sr_dev_inst *sdi, struct sr_channel_group *cg,
 	cp->ch_type = type;
 	cp->probe = cg->priv;
 
-	ch = sr_channel_new(devc->num_channels++,
+	ch = sr_channel_new(sdi, devc->num_channels++,
 			    SR_CHANNEL_ANALOG, TRUE, name);
 	g_free(name);
 
 	ch->priv = cp;
 	cg->channels = g_slist_append(cg->channels, ch);
-	sdi->channels = g_slist_append(sdi->channels, ch);
 }
 
 SR_PRIV gboolean bl_acme_register_probe(struct sr_dev_inst *sdi, int type,
diff --git a/src/hardware/beaglelogic/api.c b/src/hardware/beaglelogic/api.c
index 098efa06..e6668ae6 100644
--- a/src/hardware/beaglelogic/api.c
+++ b/src/hardware/beaglelogic/api.c
@@ -86,7 +86,6 @@ static GSList *scan(GSList *options)
 	struct sr_config *src;
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	int i, maxch;
 
 	devices = NULL;
@@ -136,11 +135,9 @@ static GSList *scan(GSList *options)
 	sr_info("BeagleLogic device found at "BEAGLELOGIC_DEV_NODE);
 
 	/* Fill the channels */
-	for (i = 0; i < maxch; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+	for (i = 0; i < maxch; i++)
+		sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 				beaglelogic_channel_names[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
-	}
 
 	sdi->priv = devc;
 	drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/hardware/brymen-bm86x/api.c b/src/hardware/brymen-bm86x/api.c
index 65fcb428..87d2e5af 100644
--- a/src/hardware/brymen-bm86x/api.c
+++ b/src/hardware/brymen-bm86x/api.c
@@ -48,7 +48,6 @@ static GSList *scan(GSList *options)
 	struct sr_dev_inst *sdi;
 	struct sr_usb_dev_inst *usb;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	const char *conn;
 
 	drvc = di->priv;
@@ -80,10 +79,8 @@ static GSList *scan(GSList *options)
 		devc = g_malloc0(sizeof(struct dev_context));
 		sdi->priv = devc;
 		sdi->driver = di;
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P2");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P2");
 
 		sdi->inst_type = SR_INST_USB;
 		sdi->conn = usb;
diff --git a/src/hardware/brymen-dmm/api.c b/src/hardware/brymen-dmm/api.c
index aef784e8..058835ee 100644
--- a/src/hardware/brymen-dmm/api.c
+++ b/src/hardware/brymen-dmm/api.c
@@ -44,7 +44,6 @@ static GSList *brymen_scan(const char *conn, const char *serialcomm)
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
 	struct drv_context *drvc;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *devices;
 	int ret;
@@ -84,8 +83,7 @@ static GSList *brymen_scan(const char *conn, const char *serialcomm)
 	drvc = di->priv;
 	sdi->priv = devc;
 	sdi->driver = di;
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
 
diff --git a/src/hardware/cem-dt-885x/api.c b/src/hardware/cem-dt-885x/api.c
index d91c5509..5c259542 100644
--- a/src/hardware/cem-dt-885x/api.c
+++ b/src/hardware/cem-dt-885x/api.c
@@ -82,7 +82,6 @@ static GSList *scan(GSList *options)
 	struct sr_config *src;
 	struct sr_serial_dev_inst *serial;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	GSList *l, *devices;
 	gint64 start;
 	const char *conn;
@@ -122,8 +121,7 @@ static GSList *scan(GSList *options)
 			sdi->inst_type = SR_INST_SERIAL;
 			sdi->priv = devc;
 			sdi->driver = di;
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL");
-			sdi->channels = g_slist_append(sdi->channels, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
 			drvc->instances = g_slist_append(drvc->instances, sdi);
 			devices = g_slist_append(devices, sdi);
 			break;
diff --git a/src/hardware/center-3xx/api.c b/src/hardware/center-3xx/api.c
index c4008d48..cc9e3d7a 100644
--- a/src/hardware/center-3xx/api.c
+++ b/src/hardware/center-3xx/api.c
@@ -72,7 +72,6 @@ static GSList *center_scan(const char *conn, const char *serialcomm, int idx)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *devices;
 
@@ -98,9 +97,8 @@ static GSList *center_scan(const char *conn, const char *serialcomm, int idx)
 	sdi->driver = center_devs[idx].di;
 
 	for (i = 0; i <  center_devs[idx].num_channels; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG,
+		sr_channel_new(sdi, i, SR_CHANNEL_ANALOG,
 				    TRUE, channel_names[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
 	}
 
 	drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/hardware/chronovu-la/api.c b/src/hardware/chronovu-la/api.c
index c9d7ec11..14f1066e 100644
--- a/src/hardware/chronovu-la/api.c
+++ b/src/hardware/chronovu-la/api.c
@@ -80,7 +80,6 @@ static int add_device(int idx, int model, GSList **devices)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 
 	ret = SR_OK;
 
@@ -127,11 +126,9 @@ static int add_device(int idx, int model, GSList **devices)
 	sdi->driver = di;
 	sdi->priv = devc;
 
-	for (i = 0; i < devc->prof->num_channels; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+	for (i = 0; i < devc->prof->num_channels; i++)
+		sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 				    cv_channel_names[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
-	}
 
 	*devices = g_slist_append(*devices, sdi);
 	drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/hardware/colead-slm/api.c b/src/hardware/colead-slm/api.c
index 34bebd8e..6e907cec 100644
--- a/src/hardware/colead-slm/api.c
+++ b/src/hardware/colead-slm/api.c
@@ -56,7 +56,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	GSList *devices, *l;
 	const char *conn, *serialcomm;
 
@@ -91,8 +90,7 @@ static GSList *scan(GSList *options)
 	sdi->inst_type = SR_INST_SERIAL;
 	sdi->priv = devc;
 	sdi->driver = di;
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
 
diff --git a/src/hardware/conrad-digi-35-cpu/api.c b/src/hardware/conrad-digi-35-cpu/api.c
index ed7378ee..dc524264 100644
--- a/src/hardware/conrad-digi-35-cpu/api.c
+++ b/src/hardware/conrad-digi-35-cpu/api.c
@@ -51,7 +51,6 @@ static GSList *scan(GSList *options)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *l, *devices;
 	const char *conn, *serialcomm;
@@ -100,8 +99,7 @@ static GSList *scan(GSList *options)
 	sdi->conn = serial;
 	sdi->priv = NULL;
 	sdi->driver = di;
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "CH1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
 
diff --git a/src/hardware/demo/demo.c b/src/hardware/demo/demo.c
index 95c9fcfe..fb1bb05f 100644
--- a/src/hardware/demo/demo.c
+++ b/src/hardware/demo/demo.c
@@ -320,8 +320,7 @@ static GSList *scan(GSList *options)
 	cg->name = g_strdup("Logic");
 	for (i = 0; i < num_logic_channels; i++) {
 		sprintf(channel_name, "D%d", i);
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name);
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
 		cg->channels = g_slist_append(cg->channels, ch);
 	}
 	sdi->channel_groups = g_slist_append(NULL, cg);
@@ -336,9 +335,8 @@ static GSList *scan(GSList *options)
 	devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal);
 	for (i = 0; i < num_analog_channels; i++) {
 		snprintf(channel_name, 16, "A%d", i);
-		ch = sr_channel_new(i + num_logic_channels, SR_CHANNEL_ANALOG,
+		ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG,
 				TRUE, channel_name);
-		sdi->channels = g_slist_append(sdi->channels, ch);
 		acg->channels = g_slist_append(acg->channels, ch);
 
 		/* Every analog channel gets its own channel group as well. */
diff --git a/src/hardware/fluke-dmm/api.c b/src/hardware/fluke-dmm/api.c
index e590a4cc..bb903d2f 100644
--- a/src/hardware/fluke-dmm/api.c
+++ b/src/hardware/fluke-dmm/api.c
@@ -69,7 +69,6 @@ static GSList *fluke_scan(const char *conn, const char *serialcomm)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *devices;
 	int retry, len, i, s;
@@ -132,8 +131,7 @@ static GSList *fluke_scan(const char *conn, const char *serialcomm)
 				sdi->conn = serial;
 				sdi->priv = devc;
 				sdi->driver = di;
-				ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-				sdi->channels = g_slist_append(sdi->channels, ch);
+				sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 				drvc->instances = g_slist_append(drvc->instances, sdi);
 				devices = g_slist_append(devices, sdi);
 				break;
diff --git a/src/hardware/fx2lafw/api.c b/src/hardware/fx2lafw/api.c
index 46520eb4..8e9b5be4 100644
--- a/src/hardware/fx2lafw/api.c
+++ b/src/hardware/fx2lafw/api.c
@@ -171,7 +171,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_usb_dev_inst *usb;
-	struct sr_channel *ch;
 	struct sr_config *src;
 	const struct fx2lafw_profile *prof;
 	GSList *l, *devices, *conn_devices;
@@ -288,11 +287,9 @@ static GSList *scan(GSList *options)
 
 		/* Fill in channellist according to this device's profile. */
 		num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
-		for (j = 0; j < num_logic_channels; j++) {
-			ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
+		for (j = 0; j < num_logic_channels; j++)
+			sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
 					channel_names[j]);
-			sdi->channels = g_slist_append(sdi->channels, ch);
-		}
 
 		devc = fx2lafw_dev_new();
 		devc->profile = prof;
diff --git a/src/hardware/gmc-mh-1x-2x/api.c b/src/hardware/gmc-mh-1x-2x/api.c
index 91267d98..96d7656c 100644
--- a/src/hardware/gmc-mh-1x-2x/api.c
+++ b/src/hardware/gmc-mh-1x-2x/api.c
@@ -162,7 +162,6 @@ static GSList *scan_1x_2x_rs232(GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *l, *devices;
 	const char *conn, *serialcomm;
@@ -236,8 +235,7 @@ static GSList *scan_1x_2x_rs232(GSList *options)
 		sdi->conn = serial;
 		sdi->priv = devc;
 		sdi->driver = &gmc_mh_1x_2x_rs232_driver_info;
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 		drvc->instances = g_slist_append(drvc->instances, sdi);
 		devices = g_slist_append(devices, sdi);
 	}
@@ -254,7 +252,6 @@ static GSList *scan_2x_bd232(GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *l, *devices;
 	const char *conn, *serialcomm;
@@ -332,8 +329,7 @@ static GSList *scan_2x_bd232(GSList *options)
 			sdi->conn = serial;
 			sdi->priv = devc;
 			sdi->driver = &gmc_mh_2x_bd232_driver_info;
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-			sdi->channels = g_slist_append(sdi->channels, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 			drvc->instances = g_slist_append(drvc->instances, sdi);
 			devices = g_slist_append(devices, sdi);
 			devc = g_malloc0(sizeof(struct dev_context));
diff --git a/src/hardware/hameg-hmo/protocol.c b/src/hardware/hameg-hmo/protocol.c
index 28c9fd61..783c3ebc 100644
--- a/src/hardware/hameg-hmo/protocol.c
+++ b/src/hardware/hameg-hmo/protocol.c
@@ -616,9 +616,8 @@ SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi)
 
 	/* Add analog channels. */
 	for (i = 0; i < scope_models[model_index].analog_channels; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE,
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
 			   (*scope_models[model_index].analog_names)[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
 
 		devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
 
@@ -643,9 +642,8 @@ SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi)
 
 	/* Add digital channels. */
 	for (i = 0; i < scope_models[model_index].digital_channels; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 			   (*scope_models[model_index].digital_names)[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
 
 		devc->digital_groups[i < 8 ? 0 : 1]->channels = g_slist_append(
 			devc->digital_groups[i < 8 ? 0 : 1]->channels, ch);
diff --git a/src/hardware/hantek-dso/api.c b/src/hardware/hantek-dso/api.c
index d375c2aa..e2d09142 100644
--- a/src/hardware/hantek-dso/api.c
+++ b/src/hardware/hantek-dso/api.c
@@ -183,8 +183,7 @@ static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof)
 	 * a trigger source internal to the device.
 	 */
 	for (i = 0; channel_names[i]; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]);
 		cg = g_malloc0(sizeof(struct sr_channel_group));
 		cg->name = g_strdup(channel_names[i]);
 		cg->channels = g_slist_append(cg->channels, ch);
diff --git a/src/hardware/ikalogic-scanalogic2/api.c b/src/hardware/ikalogic-scanalogic2/api.c
index 798ae8bd..b9418db2 100644
--- a/src/hardware/ikalogic-scanalogic2/api.c
+++ b/src/hardware/ikalogic-scanalogic2/api.c
@@ -65,7 +65,6 @@ static GSList *scan(GSList *options)
 	GSList *usb_devices, *devices, *l;
 	struct drv_context *drvc;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct dev_context *devc;
 	struct sr_usb_dev_inst *usb;
 	struct device_info dev_info;
@@ -119,12 +118,9 @@ static GSList *scan(GSList *options)
 		sdi->inst_type = SR_INST_USB;
 		sdi->conn = usb;
 
-		for (i = 0; channel_names[i]; i++) {
-			ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
-				channel_names[i]);
-			sdi->channels = g_slist_append(sdi->channels, ch);
-			devc->channels[i] = ch;
-		}
+		for (i = 0; channel_names[i]; i++)
+			devc->channels[i] = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC,
+				TRUE, channel_names[i]);
 
 		devc->state = STATE_IDLE;
 		devc->next_state = STATE_IDLE;
diff --git a/src/hardware/ikalogic-scanaplus/api.c b/src/hardware/ikalogic-scanaplus/api.c
index ea508c09..3bd1b273 100644
--- a/src/hardware/ikalogic-scanaplus/api.c
+++ b/src/hardware/ikalogic-scanaplus/api.c
@@ -74,7 +74,6 @@ static int init(struct sr_context *sr_ctx)
 static GSList *scan(GSList *options)
 {
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	GSList *devices;
@@ -127,11 +126,9 @@ static GSList *scan(GSList *options)
 	sdi->driver = di;
 	sdi->priv = devc;
 
-	for (i = 0; channel_names[i]; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+	for (i = 0; channel_names[i]; i++)
+		sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 				    channel_names[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
-	}
 
 	devices = g_slist_append(devices, sdi);
 	drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/hardware/kecheng-kc-330b/api.c b/src/hardware/kecheng-kc-330b/api.c
index 0f8304fc..7f49364a 100644
--- a/src/hardware/kecheng-kc-330b/api.c
+++ b/src/hardware/kecheng-kc-330b/api.c
@@ -113,7 +113,6 @@ static GSList *scan(GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	GSList *usb_devices, *devices, *l;
 	char *model;
 
@@ -136,8 +135,7 @@ static GSList *scan(GSList *options)
 			sdi->driver = di;
 			sdi->inst_type = SR_INST_USB;
 			sdi->conn = l->data;
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL");
-			sdi->channels = g_slist_append(sdi->channels, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
 			devc = g_malloc0(sizeof(struct dev_context));
 			sdi->priv = devc;
 			devc->limit_samples = 0;
diff --git a/src/hardware/lascar-el-usb/protocol.c b/src/hardware/lascar-el-usb/protocol.c
index 801f83b0..576d9749 100644
--- a/src/hardware/lascar-el-usb/protocol.c
+++ b/src/hardware/lascar-el-usb/protocol.c
@@ -293,7 +293,6 @@ static struct sr_dev_inst *lascar_identify(unsigned char *config)
 	struct dev_context *devc;
 	const struct elusb_profile *profile;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	int modelid, i;
 	char firmware[5];
 
@@ -332,16 +331,12 @@ static struct sr_dev_inst *lascar_identify(unsigned char *config)
 
 		if (profile->logformat == LOG_TEMP_RH) {
 			/* Model this as two channels: temperature and humidity. */
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "Temp");
-			sdi->channels = g_slist_append(NULL, ch);
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "Hum");
-			sdi->channels = g_slist_append(sdi->channels, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Temp");
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Hum");
 		} else if (profile->logformat == LOG_CO) {
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "CO");
-			sdi->channels = g_slist_append(NULL, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CO");
 		} else {
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-			sdi->channels = g_slist_append(NULL, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 		}
 
 		devc = g_malloc0(sizeof(struct dev_context));
diff --git a/src/hardware/link-mso19/api.c b/src/hardware/link-mso19/api.c
index 451cc934..aa8cb778 100644
--- a/src/hardware/link-mso19/api.c
+++ b/src/hardware/link-mso19/api.c
@@ -215,11 +215,9 @@ static GSList *scan(GSList *options)
 		sdi->priv = devc;
 
 		for (i = 0; i < NUM_CHANNELS; i++) {
-			struct sr_channel *ch;
 			chtype = (i == 0) ? SR_CHANNEL_ANALOG : SR_CHANNEL_LOGIC;
-			ch = sr_channel_new(i, chtype, TRUE,
+			sr_channel_new(sdi, i, chtype, TRUE,
 					    mso19_channel_names[i]);
-			sdi->channels = g_slist_append(sdi->channels, ch);
 		}
 
 		//Add the driver
diff --git a/src/hardware/manson-hcs-3xxx/api.c b/src/hardware/manson-hcs-3xxx/api.c
index d3e5f8fa..d3bd5e1f 100644
--- a/src/hardware/manson-hcs-3xxx/api.c
+++ b/src/hardware/manson-hcs-3xxx/api.c
@@ -92,7 +92,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	GSList *devices, *l;
 	const char *conn, *serialcomm;
 	struct sr_serial_dev_inst *serial;
@@ -162,8 +161,7 @@ static GSList *scan(GSList *options)
 	sdi->conn = serial;
 	sdi->driver = di;
 
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "CH1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
 
 	devc = g_malloc0(sizeof(struct dev_context));
 	devc->model = &models[model_id];
diff --git a/src/hardware/mic-985xx/api.c b/src/hardware/mic-985xx/api.c
index 3bc65faa..737febaf 100644
--- a/src/hardware/mic-985xx/api.c
+++ b/src/hardware/mic-985xx/api.c
@@ -71,7 +71,6 @@ static GSList *mic_scan(const char *conn, const char *serialcomm, int idx)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *devices;
 
@@ -100,13 +99,10 @@ static GSList *mic_scan(const char *conn, const char *serialcomm, int idx)
 	sdi->priv = devc;
 	sdi->driver = mic_devs[idx].di;
 
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "Temperature");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Temperature");
 
-	if (mic_devs[idx].has_humidity) {
-		ch = sr_channel_new(1, SR_CHANNEL_ANALOG, TRUE, "Humidity");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-	}
+	if (mic_devs[idx].has_humidity)
+		sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "Humidity");
 
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
diff --git a/src/hardware/motech-lps-30x/api.c b/src/hardware/motech-lps-30x/api.c
index f118ebe3..d54b267c 100644
--- a/src/hardware/motech-lps-30x/api.c
+++ b/src/hardware/motech-lps-30x/api.c
@@ -470,8 +470,7 @@ static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *o
 	/* Setup channels and channel groups. */
 	for (cnt = 0; cnt < models[modelid].num_channels; cnt++) {
 		snprintf(channel, sizeof(channel), "CH%d", cnt + 1);
-		ch = sr_channel_new(cnt, SR_CHANNEL_ANALOG, TRUE, channel);
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		ch = sr_channel_new(sdi, cnt, SR_CHANNEL_ANALOG, TRUE, channel);
 
 		devc->channel_status[cnt].info = g_slist_append(NULL, ch);
 
diff --git a/src/hardware/norma-dmm/api.c b/src/hardware/norma-dmm/api.c
index 83e11351..174425b7 100644
--- a/src/hardware/norma-dmm/api.c
+++ b/src/hardware/norma-dmm/api.c
@@ -82,7 +82,6 @@ static GSList *do_scan(struct sr_dev_driver* drv, GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *l, *devices;
 	int len, cnt;
@@ -155,8 +154,7 @@ static GSList *do_scan(struct sr_dev_driver* drv, GSList *options)
 			sdi->conn = serial;
 			sdi->priv = devc;
 			sdi->driver = drv;
-			ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-			sdi->channels = g_slist_append(sdi->channels, ch);
+			sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 			drvc->instances = g_slist_append(drvc->instances, sdi);
 			devices = g_slist_append(devices, sdi);
 			break;
diff --git a/src/hardware/openbench-logic-sniffer/api.c b/src/hardware/openbench-logic-sniffer/api.c
index ca5f4799..487f5b2e 100644
--- a/src/hardware/openbench-logic-sniffer/api.c
+++ b/src/hardware/openbench-logic-sniffer/api.c
@@ -98,7 +98,6 @@ static GSList *scan(GSList *options)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *l, *devices;
 	int ret, i;
@@ -194,11 +193,9 @@ static GSList *scan(GSList *options)
 		sdi->model = g_strdup("Logic Analyzer");
 		sdi->version = g_strdup("v1.0");
 		sdi->driver = di;
-		for (i = 0; i < 32; i++) {
-			ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+		for (i = 0; i < 32; i++)
+			sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 					ols_channel_names[i]);
-			sdi->channels = g_slist_append(sdi->channels, ch);
-		}
 		devc = ols_dev_new();
 		sdi->priv = devc;
 	}
diff --git a/src/hardware/openbench-logic-sniffer/protocol.c b/src/hardware/openbench-logic-sniffer/protocol.c
index b732da59..d9c2c2bb 100644
--- a/src/hardware/openbench-logic-sniffer/protocol.c
+++ b/src/hardware/openbench-logic-sniffer/protocol.c
@@ -142,7 +142,6 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
 {
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	uint32_t tmp_int, ui;
 	uint8_t key, type, token;
 	int delay_ms;
@@ -215,11 +214,9 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
 			switch (token) {
 			case 0x00:
 				/* Number of usable channels */
-				for (ui = 0; ui < tmp_int; ui++) {
-					ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
+				for (ui = 0; ui < tmp_int; ui++)
+					sr_channel_new(sdi, ui, SR_CHANNEL_LOGIC, TRUE,
 							ols_channel_names[ui]);
-					sdi->channels = g_slist_append(sdi->channels, ch);
-				}
 				break;
 			case 0x01:
 				/* Amount of sample memory available (bytes) */
@@ -253,11 +250,9 @@ SR_PRIV struct sr_dev_inst *get_metadata(struct sr_serial_dev_inst *serial)
 			switch (token) {
 			case 0x00:
 				/* Number of usable channels */
-				for (ui = 0; ui < tmp_c; ui++) {
-					ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
+				for (ui = 0; ui < tmp_c; ui++)
+					sr_channel_new(sdi, ui, SR_CHANNEL_LOGIC, TRUE,
 							ols_channel_names[ui]);
-					sdi->channels = g_slist_append(sdi->channels, ch);
-				}
 				break;
 			case 0x01:
 				/* protocol version */
diff --git a/src/hardware/pipistrello-ols/protocol.c b/src/hardware/pipistrello-ols/protocol.c
index 272c8a8c..1d0c9f20 100644
--- a/src/hardware/pipistrello-ols/protocol.c
+++ b/src/hardware/pipistrello-ols/protocol.c
@@ -219,7 +219,6 @@ SR_PRIV int pols_convert_trigger(const struct sr_dev_inst *sdi)
 SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, struct dev_context *devc)
 {
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	uint32_t tmp_int, ui;
 	uint8_t key, type, token;
 	GString *tmp_str, *devname, *version;
@@ -288,11 +287,9 @@ SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, str
 			switch (token) {
 			case 0x00:
 				/* Number of usable channels */
-				for (ui = 0; ui < tmp_int; ui++) {
-					ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
+				for (ui = 0; ui < tmp_int; ui++)
+					sr_channel_new(sdi, ui, SR_CHANNEL_LOGIC, TRUE,
 							p_ols_channel_names[ui]);
-					sdi->channels = g_slist_append(sdi->channels, ch);
-				}
 				break;
 			case 0x01:
 				/* Amount of sample memory available (bytes) */
@@ -324,11 +321,9 @@ SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, str
 			switch (token) {
 			case 0x00:
 				/* Number of usable channels */
-				for (ui = 0; ui < tmp_c; ui++) {
-					ch = sr_channel_new(ui, SR_CHANNEL_LOGIC, TRUE,
+				for (ui = 0; ui < tmp_c; ui++)
+					sr_channel_new(sdi, ui, SR_CHANNEL_LOGIC, TRUE,
 							p_ols_channel_names[ui]);
-					sdi->channels = g_slist_append(sdi->channels, ch);
-				}
 				break;
 			case 0x01:
 				/* protocol version */
diff --git a/src/hardware/rigol-ds/api.c b/src/hardware/rigol-ds/api.c
index a8f8bcde..5da9a5ea 100644
--- a/src/hardware/rigol-ds/api.c
+++ b/src/hardware/rigol-ds/api.c
@@ -345,8 +345,7 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 	for (i = 0; i < model->analog_channels; i++) {
 		if (!(channel_name = g_strdup_printf("CH%d", i + 1)))
 			return NULL;
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, channel_name);
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_name);
 
 		devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
 
@@ -362,9 +361,8 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 		for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) {
 			if (!(channel_name = g_strdup_printf("D%d", i)))
 				return NULL;
-			ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name);
+			ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
 			g_free(channel_name);
-			sdi->channels = g_slist_append(sdi->channels, ch);
 			devc->digital_group->channels = g_slist_append(
 					devc->digital_group->channels, ch);
 		}
diff --git a/src/hardware/saleae-logic16/api.c b/src/hardware/saleae-logic16/api.c
index f33894ea..cf6063af 100644
--- a/src/hardware/saleae-logic16/api.c
+++ b/src/hardware/saleae-logic16/api.c
@@ -145,7 +145,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_usb_dev_inst *usb;
-	struct sr_channel *ch;
 	struct sr_config *src;
 	GSList *l, *devices, *conn_devices;
 	struct libusb_device_descriptor des;
@@ -206,11 +205,9 @@ static GSList *scan(GSList *options)
 		sdi->driver = di;
 		sdi->connection_id = g_strdup(connection_id);
 
-		for (j = 0; channel_names[j]; j++) {
-			ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
+		for (j = 0; channel_names[j]; j++)
+			sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
 					    channel_names[j]);
-			sdi->channels = g_slist_append(sdi->channels, ch);
-		}
 
 		devc = g_malloc0(sizeof(struct dev_context));
 		devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V;
diff --git a/src/hardware/scpi-pps/api.c b/src/hardware/scpi-pps/api.c
index c8070a06..4647031c 100644
--- a/src/hardware/scpi-pps/api.c
+++ b/src/hardware/scpi-pps/api.c
@@ -133,13 +133,13 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 				continue;
 			g_snprintf(ch_name, 16, "%s%s", pci[i].prefix,
 					channels[ch_num].name);
-			ch = sr_channel_new(ch_idx++, SR_CHANNEL_ANALOG, TRUE, ch_name);
+			ch = sr_channel_new(sdi, ch_idx++, SR_CHANNEL_ANALOG, TRUE,
+					ch_name);
 			pch = g_malloc0(sizeof(struct pps_channel));
 			pch->hw_output_idx = ch_num;
 			pch->hwname = channels[ch_num].name;
 			pch->mq = pci[i].mq;
 			ch->priv = pch;
-			sdi->channels = g_slist_append(sdi->channels, ch);
 		}
 	}
 
diff --git a/src/hardware/serial-dmm/api.c b/src/hardware/serial-dmm/api.c
index 4bbf230f..0387c95a 100644
--- a/src/hardware/serial-dmm/api.c
+++ b/src/hardware/serial-dmm/api.c
@@ -410,7 +410,6 @@ static GSList *sdmm_scan(const char *conn, const char *serialcomm, int dmm)
 	struct sr_dev_inst *sdi;
 	struct drv_context *drvc;
 	struct dev_context *devc;
-	struct sr_channel *ch;
 	struct sr_serial_dev_inst *serial;
 	GSList *devices;
 	int dropped, ret;
@@ -472,8 +471,7 @@ static GSList *sdmm_scan(const char *conn, const char *serialcomm, int dmm)
 	sdi->conn = serial;
 	sdi->priv = devc;
 	sdi->driver = dmms[dmm].di;
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
 
diff --git a/src/hardware/sysclk-lwla/api.c b/src/hardware/sysclk-lwla/api.c
index 1e3dd1d2..959b566d 100644
--- a/src/hardware/sysclk-lwla/api.c
+++ b/src/hardware/sysclk-lwla/api.c
@@ -79,30 +79,12 @@ static int init(struct sr_context *sr_ctx)
 	return std_init(sr_ctx, di, LOG_PREFIX);
 }
 
-static GSList *gen_channel_list(int num_channels)
-{
-	GSList *list;
-	struct sr_channel *ch;
-	int i;
-	char name[8];
-
-	list = NULL;
-
-	for (i = num_channels; i > 0; --i) {
-		/* The LWLA series simply number channels from CH1 to CHxx. */
-		g_snprintf(name, sizeof(name), "CH%d", i);
-
-		ch = sr_channel_new(i - 1, SR_CHANNEL_LOGIC, TRUE, name);
-		list = g_slist_prepend(list, ch);
-	}
-
-	return list;
-}
-
 static struct sr_dev_inst *dev_inst_new(void)
 {
 	struct sr_dev_inst *sdi;
 	struct dev_context *devc;
+	int i;
+	char name[8];
 
 	/* Allocate memory for our private driver context. */
 	devc = g_malloc0(sizeof(struct dev_context));
@@ -118,7 +100,11 @@ static struct sr_dev_inst *dev_inst_new(void)
 	devc->samplerate = DEFAULT_SAMPLERATE;
 
 	sdi->priv = devc;
-	sdi->channels = gen_channel_list(NUM_CHANNELS);
+	for (i = NUM_CHANNELS; i > 0; --i) {
+		/* The LWLA series simply number channels from CH1 to CHxx. */
+		g_snprintf(name, sizeof(name), "CH%d", i);
+		sr_channel_new(sdi, i - 1, SR_CHANNEL_LOGIC, TRUE, name);
+	}
 
 	return sdi;
 }
diff --git a/src/hardware/teleinfo/api.c b/src/hardware/teleinfo/api.c
index 5e1dfba1..c1d9b040 100644
--- a/src/hardware/teleinfo/api.c
+++ b/src/hardware/teleinfo/api.c
@@ -49,7 +49,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_serial_dev_inst *serial;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	GSList *devices = NULL, *l;
 	const char *conn = NULL, *serialcomm = NULL;
 	uint8_t buf[292];
@@ -103,42 +102,27 @@ static GSList *scan(GSList *options)
 	sdi->priv = devc;
 	sdi->driver = di;
 
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P");
 
 	if (devc->optarif == OPTARIF_BASE) {
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "BASE");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "BASE");
 	} else if (devc->optarif == OPTARIF_HC) {
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HP");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HC");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HP");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HC");
 	} else if (devc->optarif == OPTARIF_EJP) {
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HN");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HPM");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HN");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPM");
 	} else if (devc->optarif == OPTARIF_BBR) {
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HPJB");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HPJW");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HPJR");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HCJB");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HCJW");
-		sdi->channels = g_slist_append(sdi->channels, ch);
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "HCJR");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJB");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJW");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJR");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJB");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJW");
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJR");
 	}
 
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "IINST");
-	sdi->channels = g_slist_append(sdi->channels, ch);
-
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "PAPP");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "IINST");
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "PAPP");
 
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
diff --git a/src/hardware/testo/protocol.c b/src/hardware/testo/protocol.c
index bdfaf1fd..1505e5bc 100644
--- a/src/hardware/testo/protocol.c
+++ b/src/hardware/testo/protocol.c
@@ -59,7 +59,6 @@ SR_PRIV int testo_probe_channels(struct sr_dev_inst *sdi)
 {
 	struct dev_context *devc;
 	struct sr_usb_dev_inst *usb;
-	struct sr_channel *ch;
 	int unit, packet_len, len, i;
 	unsigned char packet[MAX_REPLY_SIZE], buf[MAX_REPLY_SIZE];
 	char *probe_name;
@@ -136,8 +135,7 @@ SR_PRIV int testo_probe_channels(struct sr_dev_inst *sdi)
 			sr_dbg("Unsupported measurement unit %d", unit);
 			return SR_ERR;
 		}
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, probe_name);
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, probe_name);
 	}
 	devc->num_channels = packet[6];
 	sr_dbg("Found %d channel%s.", devc->num_channels,
diff --git a/src/hardware/tondaj-sl-814/api.c b/src/hardware/tondaj-sl-814/api.c
index 2ea66ebf..cccaeb1d 100644
--- a/src/hardware/tondaj-sl-814/api.c
+++ b/src/hardware/tondaj-sl-814/api.c
@@ -51,7 +51,6 @@ static GSList *scan(GSList *options)
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	GSList *devices, *l;
 	const char *conn, *serialcomm;
 	struct sr_serial_dev_inst *serial;
@@ -100,8 +99,7 @@ static GSList *scan(GSList *options)
 
 	sdi->priv = devc;
 	sdi->driver = di;
-	ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-	sdi->channels = g_slist_append(sdi->channels, ch);
+	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 	drvc->instances = g_slist_append(drvc->instances, sdi);
 	devices = g_slist_append(devices, sdi);
 
diff --git a/src/hardware/uni-t-dmm/api.c b/src/hardware/uni-t-dmm/api.c
index a34873b4..f7b8a941 100644
--- a/src/hardware/uni-t-dmm/api.c
+++ b/src/hardware/uni-t-dmm/api.c
@@ -235,7 +235,6 @@ static GSList *scan(GSList *options, int dmm)
 	struct drv_context *drvc;
 	struct sr_usb_dev_inst *usb;
 	struct sr_config *src;
-	struct sr_channel *ch;
 	const char *conn;
 
 	drvc = udmms[dmm].di->priv;
@@ -268,8 +267,7 @@ static GSList *scan(GSList *options, int dmm)
 		sdi->model = g_strdup(udmms[dmm].device);
 		sdi->priv = devc;
 		sdi->driver = udmms[dmm].di;
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-		sdi->channels = g_slist_append(sdi->channels, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 		sdi->inst_type = SR_INST_USB;
 		sdi->conn = usb;
 		drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/hardware/uni-t-ut32x/api.c b/src/hardware/uni-t-ut32x/api.c
index aa38cf5f..e67a99e3 100644
--- a/src/hardware/uni-t-ut32x/api.c
+++ b/src/hardware/uni-t-ut32x/api.c
@@ -53,7 +53,6 @@ static GSList *scan(GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct sr_config *src;
 	GSList *usb_devices, *devices, *l;
 	int i;
@@ -86,11 +85,8 @@ static GSList *scan(GSList *options)
 			sdi->driver = di;
 			sdi->inst_type = SR_INST_USB;
 			sdi->conn = l->data;
-			for (i = 0; i < 3; i++) {
-				ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE,
-						channels[i]);
-				sdi->channels = g_slist_append(sdi->channels, ch);
-			}
+			for (i = 0; i < 3; i++)
+				sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channels[i]);
 			devc = g_malloc0(sizeof(struct dev_context));
 			sdi->priv = devc;
 			devc->limit_samples = 0;
diff --git a/src/hardware/victor-dmm/api.c b/src/hardware/victor-dmm/api.c
index f2e3d783..2552027c 100644
--- a/src/hardware/victor-dmm/api.c
+++ b/src/hardware/victor-dmm/api.c
@@ -59,7 +59,6 @@ static GSList *scan(GSList *options)
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct libusb_device_descriptor des;
 	libusb_device **devlist;
 	GSList *devices;
@@ -92,8 +91,7 @@ static GSList *scan(GSList *options)
 		devc = g_malloc0(sizeof(struct dev_context));
 		sdi->priv = devc;
 
-		ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
-		sdi->channels = g_slist_append(NULL, ch);
+		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 
 		sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
 				libusb_get_device_address(devlist[i]), NULL);
diff --git a/src/hardware/yokogawa-dlm/protocol.c b/src/hardware/yokogawa-dlm/protocol.c
index 9f5daf1c..8acaf023 100644
--- a/src/hardware/yokogawa-dlm/protocol.c
+++ b/src/hardware/yokogawa-dlm/protocol.c
@@ -669,9 +669,8 @@ SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index)
 
 	/* Add analog channels. */
 	for (i = 0; i < scope_models[model_index].analog_channels; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE,
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
 				(*scope_models[model_index].analog_names)[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
 
 		devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
 
@@ -698,9 +697,8 @@ SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index)
 
 	/* Add digital channels. */
 	for (i = 0; i < scope_models[model_index].digital_channels; i++) {
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE,
+		ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
 				(*scope_models[model_index].digital_names)[i]);
-		sdi->channels = g_slist_append(sdi->channels, ch);
 
 		devc->digital_groups[i / 8]->channels = g_slist_append(
 				devc->digital_groups[i / 8]->channels, ch);
diff --git a/src/hardware/zeroplus-logic-cube/api.c b/src/hardware/zeroplus-logic-cube/api.c
index fa6ef1dc..fd3ef08b 100644
--- a/src/hardware/zeroplus-logic-cube/api.c
+++ b/src/hardware/zeroplus-logic-cube/api.c
@@ -164,7 +164,6 @@ static int init(struct sr_context *sr_ctx)
 static GSList *scan(GSList *options)
 {
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	struct drv_context *drvc;
 	struct dev_context *devc;
 	const struct zp_model *prof;
@@ -247,11 +246,9 @@ static GSList *scan(GSList *options)
 		// memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES);
 
 		/* Fill in channellist according to this device's profile. */
-		for (j = 0; j < devc->num_channels; j++) {
-			ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE,
+		for (j = 0; j < devc->num_channels; j++)
+			sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
 					channel_names[j]);
-			sdi->channels = g_slist_append(sdi->channels, ch);
-		}
 
 		devices = g_slist_append(devices, sdi);
 		drvc->instances = g_slist_append(drvc->instances, sdi);
diff --git a/src/input/binary.c b/src/input/binary.c
index f9e49de1..d7080b0b 100644
--- a/src/input/binary.c
+++ b/src/input/binary.c
@@ -39,7 +39,6 @@ struct context {
 
 static int init(struct sr_input *in, GHashTable *options)
 {
-	struct sr_channel *ch;
 	struct context *inc;
 	int num_channels, i;
 	char name[16];
@@ -57,8 +56,7 @@ static int init(struct sr_input *in, GHashTable *options)
 
 	for (i = 0; i < num_channels; i++) {
 		snprintf(name, 16, "%d", i);
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, name);
-		in->sdi->channels = g_slist_append(in->sdi->channels, ch);
+		sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, name);
 	}
 
 	return SR_OK;
diff --git a/src/input/chronovu_la8.c b/src/input/chronovu_la8.c
index c28f0e0a..244abf19 100644
--- a/src/input/chronovu_la8.c
+++ b/src/input/chronovu_la8.c
@@ -51,7 +51,6 @@ static int format_match(GHashTable *metadata)
 
 static int init(struct sr_input *in, GHashTable *options)
 {
-	struct sr_channel *ch;
 	struct context *inc;
 	int num_channels, i;
 	char name[16];
@@ -69,8 +68,7 @@ static int init(struct sr_input *in, GHashTable *options)
 
 	for (i = 0; i < num_channels; i++) {
 		snprintf(name, 16, "%d", i);
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, name);
-		in->sdi->channels = g_slist_append(in->sdi->channels, ch);
+		sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, name);
 	}
 
 	return SR_OK;
diff --git a/src/input/csv.c b/src/input/csv.c
index e89f99aa..47fee73e 100644
--- a/src/input/csv.c
+++ b/src/input/csv.c
@@ -472,7 +472,6 @@ static char *get_line_termination(GString *buf)
 static int initial_parse(const struct sr_input *in, GString *buf)
 {
 	struct context *inc;
-	struct sr_channel *ch;
 	GString *channel_name;
 	gsize num_columns, l, i;
 	unsigned int line_number;
@@ -558,8 +557,7 @@ static int initial_parse(const struct sr_input *in, GString *buf)
 			g_string_assign(channel_name, columns[i]);
 		else
 			g_string_printf(channel_name, "%zu", i);
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name->str);
-		in->sdi->channels = g_slist_append(in->sdi->channels, ch);
+		sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name->str);
 	}
 	g_string_free(channel_name, TRUE);
 
diff --git a/src/input/vcd.c b/src/input/vcd.c
index f1d0b06c..e69a8071 100644
--- a/src/input/vcd.c
+++ b/src/input/vcd.c
@@ -404,7 +404,6 @@ static void parse_contents(const struct sr_input *in, char *data)
 
 static int init(struct sr_input *in, GHashTable *options)
 {
-	struct sr_channel *ch;
 	int num_channels, i;
 	char name[16];
 	struct context *inc;
@@ -434,8 +433,7 @@ static int init(struct sr_input *in, GHashTable *options)
 
 	for (i = 0; i < num_channels; i++) {
 		snprintf(name, 16, "%d", i);
-		ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, name);
-		in->sdi->channels = g_slist_append(in->sdi->channels, ch);
+		sr_channel_new(in->sdi, i, SR_CHANNEL_LOGIC, TRUE, name);
 	}
 
 	return SR_OK;
diff --git a/src/input/wav.c b/src/input/wav.c
index da5a3d5f..0c23010e 100644
--- a/src/input/wav.c
+++ b/src/input/wav.c
@@ -240,7 +240,6 @@ static int process_buffer(struct sr_input *in)
 	struct context *inc;
 	struct sr_datafeed_packet packet;
 	struct sr_datafeed_meta meta;
-	struct sr_channel *ch;
 	struct sr_config *src;
 	int offset, chunk_samples, total_samples, processed, max_chunk_samples;
 	int num_samples, i;
@@ -250,8 +249,7 @@ static int process_buffer(struct sr_input *in)
 	if (!inc->started) {
 		for (i = 0; i < inc->num_channels; i++) {
 			snprintf(channelname, 8, "CH%d", i + 1);
-			ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, channelname);
-			in->sdi->channels = g_slist_append(in->sdi->channels, ch);
+			sr_channel_new(in->sdi, i, SR_CHANNEL_ANALOG, TRUE, channelname);
 		}
 
 		std_session_send_df_header(in->sdi, LOG_PREFIX);
diff --git a/src/lcr/es51919.c b/src/lcr/es51919.c
index 86237412..c6fddc11 100644
--- a/src/lcr/es51919.c
+++ b/src/lcr/es51919.c
@@ -792,16 +792,6 @@ static int receive_data(int fd, int revents, void *cb_data)
 	return TRUE;
 }
 
-static int add_channel(struct sr_dev_inst *sdi, int idx, const char *name)
-{
-	struct sr_channel *ch;
-
-	ch = sr_channel_new(idx, SR_CHANNEL_ANALOG, TRUE, name);
-	sdi->channels = g_slist_append(sdi->channels, ch);
-
-	return SR_OK;
-}
-
 static const char *const channel_names[] = { "P1", "P2" };
 
 static int setup_channels(struct sr_dev_inst *sdi)
@@ -811,11 +801,8 @@ static int setup_channels(struct sr_dev_inst *sdi)
 
 	ret = SR_ERR_BUG;
 
-	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
-		ret = add_channel(sdi, i, channel_names[i]);
-		if (ret != SR_OK)
-			break;
-	}
+	for (i = 0; i < ARRAY_SIZE(channel_names); i++)
+		sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]);
 
 	return ret;
 }
diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
index 574497c1..e6f2dbe2 100644
--- a/src/libsigrok-internal.h
+++ b/src/libsigrok-internal.h
@@ -589,8 +589,8 @@ enum {
 	SR_CHANNEL_SET_ENABLED = 1 << 0,
 };
 
-SR_PRIV struct sr_channel *sr_channel_new(int index, int type,
-		gboolean enabled, const char *name);
+SR_PRIV struct sr_channel *sr_channel_new(struct sr_dev_inst *sdi,
+		int index, int type, gboolean enabled, const char *name);
 
 /** Device instance data */
 struct sr_dev_inst {
diff --git a/src/session_file.c b/src/session_file.c
index 26c0df7a..e27ed85c 100644
--- a/src/session_file.c
+++ b/src/session_file.c
@@ -122,7 +122,6 @@ SR_API int sr_session_load(const char *filename, struct sr_session **session)
 	struct zip_file *zf;
 	struct zip_stat zs;
 	struct sr_dev_inst *sdi;
-	struct sr_channel *ch;
 	int ret, i, j;
 	uint64_t tmp_u64, total_channels, p;
 	char **sections, **keys, *metafile, *val;
@@ -212,9 +211,8 @@ SR_API int sr_session_load(const char *filename, struct sr_session **session)
 							g_variant_new_uint64(total_channels), sdi, NULL);
 					for (p = 0; p < total_channels; p++) {
 						snprintf(channelname, SR_MAX_CHANNELNAME_LEN, "%" PRIu64, p);
-						ch = sr_channel_new(p, SR_CHANNEL_LOGIC, FALSE,
+						sr_channel_new(sdi, p, SR_CHANNEL_LOGIC, FALSE,
 								channelname);
-						sdi->channels = g_slist_append(sdi->channels, ch);
 					}
 				} else if (!strncmp(keys[j], "probe", 5)) {
 					if (!sdi) {