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authorClemens Ladisch <clemens@ladisch.de>2011-09-26 21:15:27 +0200
committerTakashi Iwai <tiwai@suse.de>2011-09-27 09:21:48 +0200
commit17d900c4a1b50bc191b3ca58cbd78acc04a1c5b3 (patch)
tree7640521988e285f1afa0e3dd44aa73a5333ccb38 /sound/usb/mixer.c
parent6b69a0e520a0dc6579901098d0810bcd2e1ea60b (diff)
ALSA: usb-audio: increase control transfer timeout
There are certain devices that are reportedly so slow that they need more than 100 ms to handle control transfers. Therefore, increase the timeout in mixer(_quirks).c to 1000 ms. The timeout parameter of snd_usb_ctl_msg() is now constant, so we can drop it. Reported-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer.c')
-rw-r--r--sound/usb/mixer.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 78a5abda6793..b13b7ac5bad9 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -296,7 +296,7 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v
if (snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx, snd_usb_ctrl_intf(chip) | (cval->id << 8),
- buf, val_len, 100) >= val_len) {
+ buf, val_len) >= val_len) {
*value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len));
snd_usb_autosuspend(cval->mixer->chip);
return 0;
@@ -333,7 +333,7 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v
ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
validx, snd_usb_ctrl_intf(chip) | (cval->id << 8),
- buf, size, 1000);
+ buf, size);
snd_usb_autosuspend(chip);
if (ret < 0) {
@@ -445,7 +445,7 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
usb_sndctrlpipe(chip->dev, 0), request,
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
validx, snd_usb_ctrl_intf(chip) | (cval->id << 8),
- buf, val_len, 100) >= 0) {
+ buf, val_len) >= 0) {
snd_usb_autosuspend(chip);
return 0;
}