diff options
| author | Takashi Iwai <tiwai@suse.de> | 2008-08-13 15:40:53 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-08-15 11:48:01 +0200 |
| commit | 7a9b8063cf7d78d7de4f2555357101087548c699 (patch) | |
| tree | e52206406078301f572057597ba45eb0a7a413ca /sound/usb | |
| parent | ALSA: Add missing description of usb-audio parameters (diff) | |
| download | linux-7a9b8063cf7d78d7de4f2555357101087548c699.tar.xz linux-7a9b8063cf7d78d7de4f2555357101087548c699.zip | |
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')
| -rw-r--r-- | sound/usb/usbaudio.c | 7 | ||||
| -rw-r--r-- | sound/usb/usbaudio.h | 3 | ||||
| -rw-r--r-- | sound/usb/usbmixer.c | 7 |
3 files changed, 10 insertions, 7 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index c91f18cdc8b5..c5cf682c352f 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; } } diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index 140ba363414c..f3ca77f08eac 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -223,7 +223,8 @@ int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout); -int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif); +int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, + int ignore_error); void snd_usb_mixer_disconnect(struct list_head *p); int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface, diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c index 6621fad8c5f0..a49246113e75 100644 --- a/sound/usb/usbmixer.c +++ b/sound/usb/usbmixer.c @@ -2014,7 +2014,8 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, } } -int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) +int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, + int ignore_error) { static struct snd_device_ops dev_ops = { .dev_free = snd_usb_mixer_dev_free @@ -2029,9 +2030,7 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) return -ENOMEM; mixer->chip = chip; mixer->ctrlif = ctrlif; -#ifdef IGNORE_CTL_ERROR - mixer->ignore_ctl_error = 1; -#endif + mixer->ignore_ctl_error = ignore_error; mixer->id_elems = kcalloc(256, sizeof(*mixer->id_elems), GFP_KERNEL); if (!mixer->id_elems) { kfree(mixer); |