From: Uwe Hermann <redacted>
Date: Thu, 3 Aug 2017 20:22:40 +0000 (+0200)
Subject: drivers: Start counting at 0 for some loops.
X-Git-Url: https://sigrok.org/gitweb/?a=commitdiff_plain;h=d1ac53ccd5a5cf3b40539bb26509321cbc7df6b7;p=libsigrok.git

drivers: Start counting at 0 for some loops.
---

diff --git a/src/hardware/hameg-hmo/api.c b/src/hardware/hameg-hmo/api.c
index 7619f184..9cb4dc8e 100644
--- a/src/hardware/hameg-hmo/api.c
+++ b/src/hardware/hameg-hmo/api.c
@@ -287,15 +287,15 @@ static int config_set(uint32_t key, GVariant *data,
 			return SR_ERR_CHANNEL_GROUP;
 		if ((idx = std_u64_tuple_idx(data, *model->vdivs, model->num_vdivs)) < 0)
 			return SR_ERR_ARG;
-		for (j = 1; j <= model->analog_channels; j++) {
-			if (cg != devc->analog_groups[j - 1])
+		for (j = 0; j < model->analog_channels; j++) {
+			if (cg != devc->analog_groups[j])
 				continue;
-			state->analog_channels[j - 1].vdiv = idx;
+			state->analog_channels[j].vdiv = idx;
 			g_ascii_formatd(float_str, sizeof(float_str), "%E",
 				(float) (*model->vdivs)[idx][0] / (*model->vdivs)[idx][1]);
 			g_snprintf(command, sizeof(command),
 				   (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV],
-				   j, float_str);
+				   j + 1, float_str);
 			if (sr_scpi_send(sdi->conn, command) != SR_OK ||
 			    sr_scpi_get_opc(sdi->conn) != SR_OK)
 				return SR_ERR;
@@ -344,13 +344,13 @@ static int config_set(uint32_t key, GVariant *data,
 			return SR_ERR_CHANNEL_GROUP;
 		if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0)
 			return SR_ERR_ARG;
-		for (j = 1; j <= model->analog_channels; j++) {
-			if (cg != devc->analog_groups[j - 1])
+		for (j = 0; j <= model->analog_channels; j++) {
+			if (cg != devc->analog_groups[j])
 				continue;
-			state->analog_channels[j - 1].coupling = idx;
+			state->analog_channels[j].coupling = idx;
 			g_snprintf(command, sizeof(command),
 				   (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING],
-				   j, (*model->coupling_options)[idx]);
+				   j + 1, (*model->coupling_options)[idx]);
 			if (sr_scpi_send(sdi->conn, command) != SR_OK ||
 			    sr_scpi_get_opc(sdi->conn) != SR_OK)
 				return SR_ERR;
@@ -582,15 +582,15 @@ static int hmo_setup_channels(const struct sr_dev_inst *sdi)
 		}
 	}
 
-	for (i = 1; i <= model->digital_pods; i++) {
-		if (state->digital_pods[i - 1] == pod_enabled[i - 1])
+	for (i = 0; i < model->digital_pods; i++) {
+		if (state->digital_pods[i] == pod_enabled[i])
 			continue;
 		g_snprintf(command, sizeof(command),
 			   (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE],
-			   i, pod_enabled[i - 1]);
+			   i + 1, pod_enabled[i]);
 		if (sr_scpi_send(scpi, command) != SR_OK)
 			return SR_ERR;
-		state->digital_pods[i - 1] = pod_enabled[i - 1];
+		state->digital_pods[i] = pod_enabled[i];
 		setup_changed = TRUE;
 	}
 
diff --git a/src/hardware/lecroy-xstream/api.c b/src/hardware/lecroy-xstream/api.c
index 62cb967b..a9d9e044 100644
--- a/src/hardware/lecroy-xstream/api.c
+++ b/src/hardware/lecroy-xstream/api.c
@@ -241,12 +241,12 @@ static int config_set(uint32_t key, GVariant *data,
 	case SR_CONF_VDIV:
 		if ((idx = std_u64_tuple_idx(data, *model->vdivs, model->num_vdivs)) < 0)
 			return SR_ERR_ARG;
-		for (j = 1; j <= model->analog_channels; j++) {
-			if (cg != devc->analog_groups[j - 1])
+		for (j = 0; j < model->analog_channels; j++) {
+			if (cg != devc->analog_groups[j])
 				continue;
-			state->analog_channels[j - 1].vdiv = idx;
+			state->analog_channels[j].vdiv = idx;
 			g_snprintf(command, sizeof(command),
-				"C%d:VDIV %E", j, (float) (*model->vdivs)[idx][0] / (*model->vdivs)[idx][1]);
+				"C%d:VDIV %E", j + 1, (float) (*model->vdivs)[idx][0] / (*model->vdivs)[idx][1]);
 			if (sr_scpi_send(sdi->conn, command) != SR_OK ||
 			    sr_scpi_get_opc(sdi->conn) != SR_OK)
 				return SR_ERR;
@@ -290,12 +290,12 @@ static int config_set(uint32_t key, GVariant *data,
 	case SR_CONF_COUPLING:
 		if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0)
 			return SR_ERR_ARG;
-		for (j = 1; j <= model->analog_channels; j++) {
-			if (cg != devc->analog_groups[j - 1])
+		for (j = 0; j < model->analog_channels; j++) {
+			if (cg != devc->analog_groups[j])
 				continue;
-			state->analog_channels[j - 1].coupling = idx;
+			state->analog_channels[j].coupling = idx;
 			g_snprintf(command, sizeof(command), "C%d:COUPLING %s",
-					j, (*model->coupling_options)[idx]);
+					j + 1, (*model->coupling_options)[idx]);
 			if (sr_scpi_send(sdi->conn, command) != SR_OK ||
 			    sr_scpi_get_opc(sdi->conn) != SR_OK)
 				return SR_ERR;
diff --git a/src/hardware/yokogawa-dlm/api.c b/src/hardware/yokogawa-dlm/api.c
index c3574a90..5e554608 100644
--- a/src/hardware/yokogawa-dlm/api.c
+++ b/src/hardware/yokogawa-dlm/api.c
@@ -320,13 +320,13 @@ static int config_set(uint32_t key, GVariant *data,
 			return SR_ERR_CHANNEL_GROUP;
 		if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(dlm_vdivs))) < 0)
 			return SR_ERR_ARG;
-		for (j = 1; j <= model->analog_channels; j++) {
-			if (cg != devc->analog_groups[j - 1])
+		for (j = 0; j < model->analog_channels; j++) {
+			if (cg != devc->analog_groups[j])
 				continue;
-			state->analog_states[j - 1].vdiv = idx;
+			state->analog_states[j].vdiv = idx;
 			g_ascii_formatd(float_str, sizeof(float_str),
 					"%E", (float) dlm_vdivs[idx][0] / dlm_vdivs[idx][1]);
-			if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK ||
+			if (dlm_analog_chan_vdiv_set(sdi->conn, j + 1, float_str) != SR_OK ||
 					sr_scpi_get_opc(sdi->conn) != SR_OK)
 				return SR_ERR;
 			break;
@@ -370,11 +370,11 @@ static int config_set(uint32_t key, GVariant *data,
 			return SR_ERR_CHANNEL_GROUP;
 		if ((idx = std_str_idx(data, *model->coupling_options, model->num_coupling_options)) < 0)
 			return SR_ERR_ARG;
-		for (j = 1; j <= model->analog_channels; j++) {
-			if (cg != devc->analog_groups[j - 1])
+		for (j = 0; j <= model->analog_channels; j++) {
+			if (cg != devc->analog_groups[j])
 				continue;
-			state->analog_states[j - 1].coupling = idx;
-			if (dlm_analog_chan_coupl_set(sdi->conn, j, (*model->coupling_options)[idx]) != SR_OK ||
+			state->analog_states[j].coupling = idx;
+			if (dlm_analog_chan_coupl_set(sdi->conn, j + 1, (*model->coupling_options)[idx]) != SR_OK ||
 					sr_scpi_get_opc(sdi->conn) != SR_OK)
 				return SR_ERR;
 			break;