The patch titled
usb audio: fix another Dallas quirk
has been added to the -mm tree. Its filename is
usb-audio-fix-another-dallas-quirk.patch
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------------------------------------------------------
Subject: usb audio: fix another Dallas quirk
From: Pavel Machek <pavel@xxxxxxx>
Dallas USB speakers are buggy in more than one way. One of configs
they offer does not work at all.
Signed-off-by: Pavel Machek <pavel@xxxxxxx>
Cc: Jaroslav Kysela <perex@xxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
sound/usb/usbaudio.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff -puN sound/usb/usbaudio.c~usb-audio-fix-another-dallas-quirk sound/usb/usbaudio.c
--- a/sound/usb/usbaudio.c~usb-audio-fix-another-dallas-quirk
+++ a/sound/usb/usbaudio.c
@@ -2676,12 +2676,23 @@ static int parse_audio_endpoints(struct
int format;
struct audioformat *fp;
unsigned char *fmt, *csep;
+ int num;
dev = chip->dev;
/* parse the interface's altsettings */
iface = usb_ifnum_to_if(dev, iface_no);
- for (i = 0; i < iface->num_altsetting; i++) {
+
+ num = iface->num_altsetting;
+
+ /*
+ * Dallas DS4201 workaround: It presents 5 altsettings, but the last
+ * one misses syncpipe, and does not produce any sound.
+ */
+ if (chip->usb_id == USB_ID(0x04fa, 0x4201))
+ num = 4;
+
+ for (i = 0; i < num; i++) {
alts = &iface->altsetting[i];
altsd = get_iface_desc(alts);
/* skip invalid one */
_
Patches currently in -mm which might be from pavel@xxxxxxx are
git-x86.patch
git-acpi.patch
usb-audio-fix-another-dallas-quirk.patch
usb-audio-make-quirk-handling-more-readable-and-fix-commented-out-code.patch
pm-remove-legacy-pm-fix.patch
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