Clemens Ladisch
57e6dae108
ALSA: usb-audio: do not trust too-big wMaxPacketSize values
...
The driver used to assume that the streaming endpoint's wMaxPacketSize
value would be an indication of how much data the endpoint expects or
sends, and compute the number of packets per URB using this value.
However, the Focusrite Scarlett 2i4 declares a value of 1024 bytes,
while only about 88 or 44 bytes are be actually used. This discrepancy
would result in URBs with far too few packets, which would not work
correctly on the EHCI driver.
To get correct URBs, use wMaxPacketSize only as an upper limit on the
packet size.
Reported-by: James Stone <[email protected] >
Tested-by: James Stone <[email protected] >
Cc: <[email protected] > # 2.6.35+
Signed-off-by: Clemens Ladisch <[email protected] >
Signed-off-by: Takashi Iwai <[email protected] >
2013-08-08 11:37:34 +02:00
..
6fire
ALSA: 6fire: fix DMA issues with URB transfer_buffer usage
2013-08-07 16:04:27 +02:00
caiaq
ALSA: usb: uniform style used in MODULE_SUPPORTED_DEVICE()
2013-06-21 14:37:08 +02:00
hiface
ALSA: hiface: return correct XRUN indication
2013-07-24 10:51:37 +02:00
misc
ALSA: ua101: Fix unlocked snd_pcm_stop() call
2013-07-15 21:24:57 +02:00
usx2y
ALSA: usx2y: Fix unlocked snd_pcm_stop() call
2013-07-15 21:25:13 +02:00
card.c
ALSA: usb-audio: work around Android accessory firmware bug
2013-06-17 09:56:52 +02:00
card.h
ALSA: usb-audio: store protocol version in struct audioformat
2013-06-27 21:59:47 +02:00
clock.c
ALSA: usb-audio: store protocol version in struct audioformat
2013-06-27 21:59:47 +02:00
clock.h
ALSA: usb-audio: UAC2: do clock validity check earlier
2013-04-04 08:30:59 +02:00
debug.h
endpoint.c
ALSA: usb-audio: do not trust too-big wMaxPacketSize values
2013-08-08 11:37:34 +02:00
endpoint.h
ALSA: usb-audio: spelling correction
2013-04-04 08:30:30 +02:00
format.c
ALSA: usb-audio: store protocol version in struct audioformat
2013-06-27 21:59:47 +02:00
format.h
ALSA: usb-audio: store protocol version in struct audioformat
2013-06-27 21:59:47 +02:00
helper.c
ALSA: snd-usb-audio: set the timeout for usb control set messages to 5000 ms
2013-04-22 10:45:02 +02:00
helper.h
ALSA: usb-audio: increase control transfer timeout
2011-09-27 09:21:48 +02:00
Kconfig
Add M2Tech hiFace USB-SPDIF driver
2013-06-24 09:26:08 +02:00
Makefile
Add M2Tech hiFace USB-SPDIF driver
2013-06-24 09:26:08 +02:00
midi.c
ALSA: usb-audio: add MIDI port names for some Roland devices
2013-06-27 21:59:48 +02:00
midi.h
mixer.c
ALSA: usb-audio: Fix invalid volume resolution for Logitech HD Webcam c310
2013-06-17 10:25:02 +02:00
mixer.h
ALSA: usb-audio: add control index offset
2012-11-29 08:43:12 +01:00
mixer_maps.c
ALSA: usb-audio: add support for M-Audio FT C600
2013-02-11 14:02:27 +01:00
mixer_quirks.c
ALSA: usb-audio: Add Audio Advantage Micro II
2013-06-28 13:37:12 +02:00
mixer_quirks.h
pcm.c
ALSA: usb-audio: detect implicit feedback on Roland devices
2013-06-27 21:59:47 +02:00
pcm.h
power.h
proc.c
ALSA: usb-audio: proc: use found syncmaxsize to determine feedback format
2013-05-17 08:05:34 +02:00
proc.h
quirks-table.h
ALSA: usb-audio: Add Audio Advantage Micro II
2013-06-28 13:37:12 +02:00
quirks.c
ALSA: usb-audio: fix regression for fixed stream quirk
2013-07-10 17:52:14 +02:00
quirks.h
ALSA: snd-usb: add quirks handler for DSD streams
2013-04-18 10:03:53 +02:00
stream.c
ALSA: usb-audio: add support for many Roland/Yamaha devices
2013-06-27 21:59:48 +02:00
stream.h
ALSA: snd-usb: re-order code
2011-09-14 17:07:02 +02:00
usbaudio.h
ALSA: usb-audio: add support for many Roland/Yamaha devices
2013-06-27 21:59:48 +02:00