X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fmanson-hcs-3xxx%2Fapi.c;h=765d9abc78682a905cde53a680cab51ae7fd0414;hb=49a468ed8bbd4d8f70cedc8fea205fba45e2e552;hp=c62500c011d12313f51da949b053bc52392f1c2d;hpb=dd7a72ea697a172032f5473b0ddff5e8d47222f4;p=libsigrok.git

diff --git a/src/hardware/manson-hcs-3xxx/api.c b/src/hardware/manson-hcs-3xxx/api.c
index c62500c0..765d9abc 100644
--- a/src/hardware/manson-hcs-3xxx/api.c
+++ b/src/hardware/manson-hcs-3xxx/api.c
@@ -53,6 +53,7 @@ static const struct hcs_model models[] = {
 	{ MANSON_HCS_3300, "HCS-3300-USB", "3300", { 1, 16, 0.1 }, { 0, 30,   0.10 } },
 	{ MANSON_HCS_3302, "HCS-3302-USB", "3302", { 1, 32, 0.1 }, { 0, 15,   0.10 } },
 	{ MANSON_HCS_3304, "HCS-3304-USB", "3304", { 1, 60, 0.1 }, { 0,  8,   0.10 } },
+	{ MANSON_HCS_3304, "HCS-3304-USB", "HCS-3304", { 1, 60, 0.1 }, { 0,  8,   0.10 } },
 	{ MANSON_HCS_3400, "HCS-3400-USB", "3400", { 1, 16, 0.1 }, { 0, 40,   0.10 } },
 	{ MANSON_HCS_3402, "HCS-3402-USB", "3402", { 1, 32, 0.1 }, { 0, 20,   0.10 } },
 	{ MANSON_HCS_3404, "HCS-3404-USB", "3404", { 1, 60, 0.1 }, { 0, 10,   0.10 } },
@@ -249,11 +250,15 @@ static int config_set(uint32_t key, GVariant *data,
 		break;
 	case SR_CONF_ENABLED:
 		bval = g_variant_get_boolean(data);
-		if (bval == devc->output_enabled) /* Nothing to do. */
-			break;
-		if ((hcs_send_cmd(sdi->conn, "SOUT%1d\r", !bval) < 0) ||
-		    (hcs_read_reply(sdi->conn, 1, devc->buf, sizeof(devc->buf)) < 0))
+
+		if (hcs_send_cmd(sdi->conn, "SOUT%1d\r", !bval) < 0) {
+			sr_err("Could not send SR_CONF_ENABLED command.");
+			return SR_ERR;
+		}
+		if (hcs_read_reply(sdi->conn, 1, devc->buf, sizeof(devc->buf)) < 0) {
+			sr_err("Could not read SR_CONF_ENABLED reply.");
 			return SR_ERR;
+		}
 		devc->output_enabled = bval;
 		break;
 	default:
@@ -276,10 +281,14 @@ static int config_list(uint32_t key, GVariant **data,
 	case SR_CONF_DEVICE_OPTIONS:
 		return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 	case SR_CONF_VOLTAGE_TARGET:
+		if (!devc || !devc->model)
+			return SR_ERR_ARG;
 		a = devc->model->voltage;
 		*data = std_gvar_min_max_step(a[0], devc->voltage_max_device, a[2]);
 		break;
 	case SR_CONF_CURRENT_LIMIT:
+		if (!devc || !devc->model)
+			return SR_ERR_ARG;
 		a = devc->model->current;
 		*data = std_gvar_min_max_step(a[0], devc->current_max_device, a[2]);
 		break;