Commit graph

161 commits

Author SHA1 Message Date
Thomas Reitmayr
a04395ead6 [ALSA] usbaudio - Coping with short replies in usbmixer
This patch makes sure that short USB replies are treated as an
error when requesting the value of a certain mixer control.

Signed-off-by: Thomas Reitmayr <thomas@devbase.at>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-16 12:23:20 +02:00
Daniel Drake
d417045e7d [ALSA] usb-audio: another Logitech QuickCam ID
This patch adds the ID for another quickcam microphone, reported by freqmod
on ALSA ticket #0003040
I'm going to submit a USB patch separately to provide a macro to simplify these
entries, as suggested by Alan Stern. We could switch to using that in future.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-16 11:45:28 +02:00
Clemens Ladisch
490cbd92ed [ALSA] usb-audio: work around wrong wMaxPacketSize on ESI M4U
Add a workaround for the ESI M4U that claims to support 32-byte packets
but ignores the remaining bytes of packets bigger than four bytes.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:56:17 +02:00
Clemens Ladisch
d05cc10432 [ALSA] usb-audio: work around broken M-Audio MidiSport Uno firmware
The firmware of the M-Audio USB Uno MIDI Interface has, at least in
hardware revision 1.25, a bug that garbles its USB output.  When it
receives a Note On MIDI message that uses running status, the resulting
USB MIDI packet has a wrong CIN (4 instead of 9) and a wrong length
(2 bytes, the status byte is still missing).
This patch adds a workaround to track the CINs and the MIDI messages of
received USB MIDI packets to detect whether a packet with CIN 4 is a
correct SysEx packet or a buggy running status packet.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:56:17 +02:00
Daniel Drake
a91214589e [ALSA] usb-audio: explicitly match Logitech QuickCam
Commit 93c8bf45e0 modified the USB device
matching behaviour to ignore interface class matches if the device class
is vendor-specific.
This patch adds explicit ID matches for Logitech QuickCam devices, which
have a vendor specific device class (but standards-compliant audio
interfaces).
This fixes a 2.6.20 regression where the audio component of these
devices was no longer usable.
http://bugs.gentoo.org/show_bug.cgi?id=175715
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/93822
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3040
Based on a patch from sergiom

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:56:17 +02:00
Takashi Iwai
81c4899f7e [ALSA] usbaudio - Revert the minimal period size fix patch
The last patch didn't really work (false report).
Although the hardware supports 125us minimum period, the current
usb-audio driver code assumes the 1ms period in many places.
Rollback the change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:56:14 +02:00
Takashi Iwai
6b9fa70a73 [ALSA] usb-audio - Fix the minimum period size per transfer mode
The minimal period size is 125us for high-speed mode while
1ms for full-speed mode.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:56:13 +02:00
Karsten Wiese
a971c3d425 [ALSA] snd-usb-caiaq: Make playback work
some typo fixes.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:55:55 +02:00
Daniel Mack
523f1dce37 [ALSA] Add Native Instrument usb audio device support
Add snd-usb-caiaq driver to support caiaq usb-audio devices from
Native Instrument:
	* Native Instruments RigKontrol2
	* Native Instruments Kore Controller
	* Native Instruments Audio Kontrol 1
	* Native Instruments Audio 8 DJ

Signed-off-by: Daniel Mack <daniel@caiaq.org>
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11 16:55:53 +02:00
Clemens Ladisch
f38cc317c0 [ALSA] usb-audio: add PCR-A PCM support
Add support for the PCM interfaces of the Edirol PCR-A.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-14 08:38:25 +01:00
Jiri Kosina
596f967f50 [ALSA] usbaudio - remove urb->bandwidth reference
Recent changes in usbcore removed the bandwidth field from struct urb.
Remove the occurence in usbaudio.c

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-14 08:38:23 +01:00
Bjoern Fay
d0b0fac14e [ALSA] usbaudio - Add support for Edirol UA-101
Added support for the Edirol UA-101 (only in high-speed mode) by taking
the quirks for the UA-1000 and change them accordingly. Changes were
made in 'usbaudio.c', 'usbaudio.h', and 'usbquirks.h'
MIDI and recording seem to work perfectly (with JACK), but playback
gives some few glitches. I think that's the mentioned
synchronizing-problem in the UA-1000 quirk ('FIXME: playback must be
synchronized to capture'), so I didn't change that.
ToDo: Adding Mixer-Support for the built-in
control-panel/patch-bay/router.

Signed-off-by: Bjoern Fay <mail@bfay.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:03:53 +01:00
Takashi Iwai
8fec560d9b [ALSA] usbaudio - Fix Oops with unconventional sample rates
The patch fixes the memory corruption by the support of unconventional
sample rates.  Also, it avoids the too restrictive constraints if
any of usb descriptions contain continuous rates.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:03:29 +01:00
Gregor Jasny
beb60119bc [ALSA] usbaudio - Fix Oops with broken usb descriptors
This is a patch for ALSA Bug #2724. Some webcams provide bogus
settings with no valid rates. With this patch those are skipped.

Signed-off-by: Gregor Jasny <gjasny@web.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:03:26 +01:00
John Daiker
88518275e3 [ALSA] usbaudio.c: remove unneeded casts
Went rummaging through usbaudio.c and found some castings that
aren't needed as far as I can see.  Part of the KernelJanitors
TODO list.

Signed-off-by: John Daiker <daikerjohn@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:02:47 +01:00
Clemens Ladisch
e4f8e656d8 [ALSA] usb-audio: allow pausing
Add pause capabilities for both USB playback and capture streams.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:00:02 +01:00
Clemens Ladisch
1700f3080d [ALSA] usb-audio: merge playback/capture hardware information structs
The hardware information structures for playback and capture streams,
respectively, are the same, so we can use just one structure for both
streams.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:00:00 +01:00
Karsten Wiese
bc6191b100 [ALSA] Repair snd-usb-usx2y over OHCI
The previous patch 'Repair snd-usb-usx2y for usb 2.6.18' assumed
urb->start_frame roll over beyond MAX_INT for both UHCI & OHCI.
This isn't true until now (kernel 2.6.20).
Fix this by only looking at the common between OHCI & UHCI Frame number
range.
This is for mainline and stable kernels >= 2.6.18.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-01-23 09:23:36 +01:00
Takashi Iwai
2a2a5dddec [ALSA] usbaudio - Fix kobject_add() error at reconnection
Fixed the error from kobject_add() at reconnection the usb audio device.
This happens when an app keeps opening a device while the device is
replugged, due to the confliction of the internal bookkept index and
the really empty slot.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-01-09 09:14:15 +01:00
Mariusz Kozlowski
7fbe3ca571 [ALSA] usb: usbmixer error path fix
Without the patch below namelist[0] will not be freed in case
of kmalloc error.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-01-09 09:06:19 +01:00
Clemens Ladisch
987411b7d8 [ALSA] usb-audio: work around wrong frequency in CM6501 descriptors
The C-Media CM6501 chip's descriptors say that altsetting 5 supports
48 kHz, but it actually plays at 96 kHz.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-01-09 09:06:15 +01:00
Tobias Klauser
cf78bbc4b1 [ALSA] sound/usb/usbaudio: Handle return value of usb_register()
Handle the return value of usb_register() in the module_init function.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-12-20 08:55:31 +01:00
Nick Piggin
cd54e7e543 [PATCH] mm: incorrect VM_FAULT_OOM returns from drivers
Some drivers are returning OOM when it is not in response to a memory
shortage.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:20 -08:00
Mariusz Kozlowski
68df9de1d0 usb: usbmixer free kill urb cleanup
- usb_free_urb() cleanup
- usb_kill_urb() cleanup

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-01 14:23:35 -08:00
Mariusz Kozlowski
f5e135af87 usb: usbmidi kill urb cleanup
- usb_kill_urb() cleanup

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-01 14:23:35 -08:00
Takashi Iwai
de1b8b93a0 [ALSA] Fix hang-up at disconnection of usb-audio
Fix hang-up at disconnection of usb-audio devices while accessing PCM.
Don't handle PCM operations any more after shutdown flag is set.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-11-28 13:46:38 +01:00
Karsten Wiese
635bbb355e [ALSA] Repair snd-usb-usx2y for usb 2.6.18
urb->start_frame rolls over beyond MAX_INT now.
This is for stable kernel and stable alsa.

Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-06 20:23:02 +02:00
Karsten Wiese
9b08c2aa54 [ALSA] Fix bug in snd-usb-usx2y's usX2Y_pcms_lock_check()
Fix bug in snd-usb-usx2y's usX2Y_pcms_lock_check()
substream can be NULL......
in mainline, bug was introduced by:
2006-06-22  [ALSA] Add O_APPEND flag support to PCM

Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-06 20:23:01 +02:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Alexey Dobriyan
52978be636 [PATCH] kmemdup: some users
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:19 -07:00
Pete Zaitcev
38e2bfc94e USB: Dealias -110 code (more complete)
The purpose of this patch is to split off the case when a device does
not reply on the lower level (which is reported by HC hardware), and
a case when the device accepted the request, but does not reply at
upper level. This redefinition allows to diagnose issues easier,
without asking the user if the -110 happened "immediately".

The usbmon splits such cases already thanks to its timestamp, but
it's not always available.

I adjusted all drivers which I found affected (by searching for "urb").
Out of tree drivers may suffer a little bit, but I do not expect much
breakage. At worst they may print a few messages.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
Clemens Ladisch
fef8a0c03d [ALSA] usb-audio: add mixer control names for the Aureon 5.1 MkII
Add a mixer name map for the TerraTec Aureon 5.1 MkII USB.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:48:30 +02:00
Clemens Ladisch
92b9ac78f9 [ALSA] usb-audio: increase number of packets per URB
To decrease the USB interrupts rate, increase both the default and the
maximum number of packets per URB.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:48:17 +02:00
Luke Ross
a79eee8d3d [ALSA] Support for non-standard rates in USB audio driver
There's at least one USB audio chipset out there which supports only one
non-standard rate (ID 0e6a:0310 supports 46875Hz). There's a few other
patches for this card which are unsatisfactory because they attempt to
map this rate to 44.1k leading to sound distortion.
The patch below uses SNDRV_PCM_RATE_KNOT to properly support the
non-standard rates where they are available.

Signed-off-by: Luke Ross <luke@lukeross.name>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:44:58 +02:00
Takashi Iwai
727f317a10 [ALSA] usb-audio - Fix a typo of CONFIG_PROC_FS
Fixed a typo of CONFIG_PROC_FS in usbaudio.c.
The stream proc file appears again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:40:04 +02:00
Clemens Ladisch
f1265391ea [ALSA] usb-audio: add more Yamaha devices
Add some quirks for some unknown Yamaha USB MIDI devices.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:38:22 +02:00
Takashi Iwai
7bc5ba7e02 [ALSA] Add TLV support to snd-usb-audio driver
Added TLV-read support to snd-usb-audio driver for passing
the volume dB scale information to user-space.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:37:54 +02:00
Takashi Iwai
c461482c80 [ALSA] Unregister device files at disconnection
Orignally proposed by Sam Revitch <sam.revitch@gmail.com>.
Unregister device files at disconnection to avoid the futher accesses.
Also, the dev_unregister callback is removed and replaced with the
combination of disconnect + free.
A new function snd_card_free_when_closed() is introduced, which is
used in USB disconnect callback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23 10:36:58 +02:00
Panagiotis Issaris
59feddb25f [ALSA] Conversions from kmalloc+memset to k(z|c)alloc
sound: Conversions from kmalloc+memset to k(c|z)alloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-08-03 15:21:18 +02:00
Sam Revitch
e217e30c35 [ALSA] usb-audio support for Turtle Beach Roadie
From: Sam Revitch <sam.revitch@gmail.com>Recently a Turtle Beach Audio Advantage Roadie device ended up in my
possession.  It seems to work with the snd-usb-audio driver, but only
using the headphone jack in 2-channel mode.  The device has a DIN
connector carrying six more channels that are otherwise silent.
C-Media has freely available documentation for the CM106 chip around
which this device is based, and enabling 8-channel output, or
6-channel output with the headphone jack following the front pair is a
matter of setting one of its registers.
Attached is a patch to try to enable 5.1 output mode at probe time.
It seems to work correctly with my device.  There is quite list of
other configurables for this device that might deserve controls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-28 19:30:39 +02:00
Ben Williamson
c4a87ef4de [ALSA] USB midi: Remove duplicate CS_AUDIO_* #defines
Removed the CS_AUDIO_* #defines, which were duplicates of the
class-specific USB_DT_CS_* #defines in <linux/usb_ch9.h>.

Signed-off-by: Ben Williamson <ben.williamson@greyinnovation.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:34:31 +02:00
Takashi Iwai
f8c7579051 [ALSA] usbaudio - Fix a typo
Fix a typo introduced by the last fix.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:33:50 +02:00
Clemens Ladisch
faf8d11743 [ALSA] usb-audio: add workaround for CSR Bluetooth Headphones (Saitek A-250)
Some devices don't have the required class-specific endpoint descriptors.
Instead of making this case an error, this patch makes the driver guess the
endpoint attributes.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-06-22 21:33:47 +02:00
Raimonds Cicans
4d1a70dad0 [ALSA] add support for SB Live! 24-Bit External remote control
This patch rewrites the remote control code to use a table for
the peculiarities of the various SB models, and adds support
for a third model.

Signed-off-by: Raimonds Cicans <ray@vardes.lv>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-06-22 21:33:30 +02:00
Clemens Ladisch
a7b928ac5f [ALSA] rawmidi: add get_port_info callback for sequencer information flags
Add a get_port_info callback to the snd_rawmidi_global_ops structure to
allow the USB MIDI driver to supply information flags for the sequencer
ports created by seq_midi.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-06-22 21:33:20 +02:00
Takashi Iwai
0df63e44c3 [ALSA] Add O_APPEND flag support to PCM
Added O_APPEND flag support to PCM to enable shared substreams
among multiple processes.  This mechanism is used by dmix and
dsnoop plugins.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:33:13 +02:00
Takashi Iwai
bf850204a7 [ALSA] Remove unneeded read/write_size fields in proc text ops
Remove unneeded read/write_size fields in proc text ops.
snd_info_set_text_ops() is fixed, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22 21:33:09 +02:00
Clemens Ladisch
bc56eff127 [ALSA] add another Phase 26 quirk
Add a quirk entry for the TerraTec Phase 26 with yet another product ID.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-04-27 21:10:04 +02:00
Takashi Iwai
14790f1c73 [ALSA] Test volume resolution of usb audio at initialization
Test the volume of usb audio whether actually it works and adjusts
the resolution value according to it.

Some USB audio devices report a lower resolution than it reacts.
The only possible check is to write and read a volume value.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-03-31 17:59:00 +02:00
Alexey Dobriyan
7f927fcc2f [PATCH] Typo fixes
Fix a lot of typos.  Eyeballed by jmc@ in OpenBSD.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:08 -08:00