Don't check sr_channel_new() return value (always succeeds).

[libsigrok.git] / src / hardware / agilent-dmm / api.c

diff --git a/src/hardware/agilent-dmm/api.c b/src/hardware/agilent-dmm/api.c
index 1c18c99c6c47135fd8103277a224cd13849ddb68..eb723bfad045177137c43ccfe75ef069b6b662c5 100644 (file)
--- a/src/hardware/agilent-dmm/api.c
+++ b/src/hardware/agilent-dmm/api.c
@@ -32,9 +32,12 @@ static const uint32_t scanopts[] = {
        SR_CONF_SERIALCOMM,
 };
 
-static const uint32_t devopts[] = {
+static const uint32_t drvopts[] = {
        SR_CONF_MULTIMETER,
-       SR_CONF_CONTINUOUS,
+};
+
+static const uint32_t devopts[] = {
+       SR_CONF_CONTINUOUS | SR_CONF_SET,
        SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
        SR_CONF_LIMIT_MSEC | SR_CONF_SET,
 };
@@ -112,13 +115,12 @@ static GSList *scan(GSList *options)
        if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
                return NULL;
 
-       if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
+       if (serial_open(serial, SERIAL_RDWR) != SR_OK)
                return NULL;
 
        serial_flush(serial);
-       if (serial_write(serial, "*IDN?\r\n", 7) == -1) {
-               sr_err("Unable to send identification string: %s.",
-                      strerror(errno));
+       if (serial_write_blocking(serial, "*IDN?\r\n", 7, SERIAL_WRITE_TIMEOUT_MS) < 7) {
+               sr_err("Unable to send identification string.");
                return NULL;
        }
 
@@ -137,21 +139,19 @@ static GSList *scan(GSList *options)
                for (i = 0; supported_agdmm[i].model; i++) {
                        if (strcmp(supported_agdmm[i].modelname, tokens[1]))
                                continue;
-                       if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Agilent",
-                                       tokens[1], tokens[3])))
-                               return NULL;
-                       if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
-                               sr_err("Device context malloc failed.");
-                               return NULL;
-                       }
+                       sdi = g_malloc0(sizeof(struct sr_dev_inst));
+                       sdi->status = SR_ST_INACTIVE;
+                       sdi->vendor = g_strdup("Agilent");
+                       sdi->model = g_strdup(tokens[1]);
+                       sdi->version = g_strdup(tokens[3]);
+                       devc = g_malloc0(sizeof(struct dev_context));
                        devc->profile = &supported_agdmm[i];
                        devc->cur_mq = -1;
                        sdi->inst_type = SR_INST_SERIAL;
                        sdi->conn = serial;
                        sdi->priv = devc;
                        sdi->driver = di;
-                       if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1")))
-                               return NULL;
+                       ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1");
                        sdi->channels = g_slist_append(sdi->channels, ch);
                        drvc->instances = g_slist_append(drvc->instances, sdi);
                        devices = g_slist_append(devices, sdi);
@@ -228,8 +228,12 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
                                scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
                break;
        case SR_CONF_DEVICE_OPTIONS:
-               *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
-                               devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
+               if (!sdi)
+                       *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+                                       drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
+               else
+                       *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+                                       devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
                break;
        default:
                return SR_ERR_NA;