Ubiquity actually checks if the webcam is valid using:
gboolean
ubiquity_webcam_available (void) {
GUdevEnumerator *enumerator;
GUdevClient *client;
GList *devices;
guint length;
const gchar *const subsystems[] = {NULL};
client = g_udev_client_new (subsystems);
enumerator = g_udev_enumerator_new (client);
g_udev_enumerator_add_match_property (enumerator,
"ID_V4L_CAPABILITIES", ":capture:");
devices = g_udev_enumerator_execute (enumerator);
length = g_list_length (devices);
g_list_free_full (devices, g_object_unref);
return length > 0;
}
As you can see, this doesn't actually try to use it, it just checks for a v4l
capture device.
How would one differentiate one of your broken capture devices from a working
one?
I'm really not sure we should have that logic in ubiquity, it sounds
like a bug to me to expose a /dev/videoX device that has the v4l capture
flag set and doesn't actually work like a capture device...
** Changed in: ubiquity (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/924419
Title:
oem-config detecting camera where no camera exists
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