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authorTakashi Iwai <tiwai@suse.de>2008-08-13 15:40:53 +0200
committerJaroslav Kysela <perex@perex.cz>2008-08-15 11:48:01 +0200
commit7a9b8063cf7d78d7de4f2555357101087548c699 (patch)
treee52206406078301f572057597ba45eb0a7a413ca /sound/usb/usbaudio.c
parent8a8f2662c535e1dedced896cc68cb8473fd98fa0 (diff)
downloadlinux-2.6.34-ux500-7a9b8063cf7d78d7de4f2555357101087548c699.tar.gz
ALSA: usb-audio - Add ignore_ctl_error parameter
Added the ignore_ctl_error parameter to enable/disable the control-error handling for mixer interfaces. It was a hard-coded ifdef, and now you can change it more easily. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/usb/usbaudio.c')
-rw-r--r--sound/usb/usbaudio.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index c91f18cdc8b..c5cf682c352 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -71,6 +71,7 @@ static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
static int nrpacks = 8; /* max. number of packets per urb */
static int async_unlink = 1;
static int device_setup[SNDRV_CARDS]; /* device parameter for this card*/
+static int ignore_ctl_error;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the USB audio adapter.");
@@ -88,7 +89,9 @@ module_param(async_unlink, bool, 0444);
MODULE_PARM_DESC(async_unlink, "Use async unlink mode.");
module_param_array(device_setup, int, NULL, 0444);
MODULE_PARM_DESC(device_setup, "Specific device setup (if needed).");
-
+module_param(ignore_ctl_error, bool, 0444);
+MODULE_PARM_DESC(ignore_ctl_error,
+ "Ignore errors from USB controller for mixer interfaces.");
/*
* debug the h/w constraints
@@ -3633,7 +3636,7 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
if (err > 0) {
/* create normal USB audio interfaces */
if (snd_usb_create_streams(chip, ifnum) < 0 ||
- snd_usb_create_mixer(chip, ifnum) < 0) {
+ snd_usb_create_mixer(chip, ifnum, ignore_ctl_error) < 0) {
goto __error;
}
}