X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=device.c;h=141e3cfd2c9edb35887c02a0a2ff3acb891c4f2c;hb=c9c30f53c4c639d73cadc7c58c28a69090b41261;hp=2d63cab419c626234b437d81e43ede64f2188f5c;hpb=59e421bbda22512122660aee370d31b88f8ccdf4;p=sigrok-cli.git
diff --git a/device.c b/device.c
index 2d63cab..141e3cf 100644
--- a/device.c
+++ b/device.c
@@ -17,10 +17,10 @@
* along with this program. If not, see .
*/
+#include
#include
#include
#include "sigrok-cli.h"
-#include "config.h"
static void free_drvopts(struct sr_config *src)
{
@@ -35,12 +35,16 @@ GSList *device_scan(void)
int i;
if (opt_drv) {
+ /* Caller specified driver. Use it. Only this one. */
if (!parse_driver(opt_drv, &driver, &drvopts))
return NULL;
devices = sr_driver_scan(driver, drvopts);
g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
+ } else if (opt_dont_scan) {
+ /* No -d choice, and -D "don't scan" requested. Do nothing. */
+ devices = NULL;
} else {
- /* No driver specified, let them all scan on their own. */
+ /* No driver specified. Scan all available drivers. */
devices = NULL;
drivers = sr_driver_list(sr_ctx);
for (i = 0; drivers[i]; i++) {
@@ -59,7 +63,20 @@ GSList *device_scan(void)
return devices;
}
-struct sr_channel_group *select_channel_group(struct sr_dev_inst *sdi)
+/**
+ * Lookup a channel group from its name.
+ *
+ * Uses the previously stored option value to lookup a channel group.
+ * Returns a reference to the channel group when the lookup succeeded,
+ * or #NULL after lookup failure, or #NULL for the global channel group
+ * (the device's global parameters). Emits an error message when the
+ * lookup failed while a channel group's name was specified.
+ *
+ * @param[in] sdi Device instance.
+ *
+ * @returns The channel group, or #NULL for failed lookup.
+ */
+struct sr_channel_group *lookup_channel_group(struct sr_dev_inst *sdi)
{
struct sr_channel_group *cg;
GSList *l, *channel_groups;
@@ -68,7 +85,6 @@ struct sr_channel_group *select_channel_group(struct sr_dev_inst *sdi)
return NULL;
channel_groups = sr_dev_inst_channel_groups_get(sdi);
-
if (!channel_groups) {
g_critical("This device does not have any channel groups.");
return NULL;
@@ -76,9 +92,9 @@ struct sr_channel_group *select_channel_group(struct sr_dev_inst *sdi)
for (l = channel_groups; l; l = l->next) {
cg = l->data;
- if (!strcasecmp(opt_channel_group, cg->name)) {
- return cg;
- }
+ if (g_ascii_strcasecmp(opt_channel_group, cg->name) != 0)
+ continue;
+ return cg;
}
g_critical("Invalid channel group '%s'", opt_channel_group);