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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Modules: USB generic driver
We may leak 'namelist' in sound/usb/usbmixer.c::parse_audio_selector_unit()
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Modules: Documentation,USB generic driver
The patch adds the 'device_setup' module parameter and a specific
quirk to correctly initialize the audiophile usb device: this fixes
the distorted sound bug on the Analog capture port. Backward
compatibility is achieved by simply omitting the new parameter.
Signed-off-by: Thibault LE MEUR <Thibault.LeMeur@supelec.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Modules: USB generic driver
Add an error message for -ENOSYS for situations when split iso support
is needed but not enabled.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: USB generic driver
Use a generic name for USB device 0x07cf:0x6802 because this ID is used
by several devices without a product ID.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: USB generic driver
When usb_submit_urb() fails, show an error description instead of just
the error code.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: USB generic driver
snd_ctl_add() kfree's the kcontrol already if we fail there,
so this driver is currently doing a double kfree.
Coverity bug #959
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Modules: USB generic driver
Reduce the code size of the snd_usbmidi_count_bits() function by using
simpler operations.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: Digigram VX core,USB generic driver
There's no need to check pointers passed to vfree() for NULL.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Modules: USB generic driver
Rename QUIRK_MIDI_MIDITECH to QUIRK_MIDI_CME because Miditech keyboards
are built by CME and use the same protocol, and don't force a Miditech
product name for the USB ID used by both Miditech and CME UF-x
keyboards.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: PCM Midlevel,USB generic driver
Because snd_pcm_format_name() function is used only for informational
purposes, it is no longer exported from the PCM midlevel to reduce
space and dependency. usbaudio module shows only numeric value for format.
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Modules: ALSA Core,PCM Midlevel,ALSA<-OSS emulation,USB generic driver
1) The verbose procfs code for the PCM midlevel and usb audio
can be removed now (more patches will follow).
CONFIG_SND_VERBOSE_PROCFS
2) The PCM OSS plugin system can be also compiled optionaly.
CONFIG_SND_PCM_OSS_PLUGINS
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Modules: USB generic driver
Move the common packet size calculation code from
prepare_startup_playback_urb() and prepare_playback_urb() to a new
function.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: USB generic driver
This is my naive attempt at adding ALSA device support. The attached
patch provides support for the EDIROL UM-3ex. This is a 3-port USB midi
interface with a built-in USB hub and the ability to chain 2 other
UM-3x's in a master-slave configuration. I only have one, so I do not
know how this works in practice.
Though this is a 3-port device, I had to throw in that 4th 'Control' interface
to the definition in order to make the 3rd port work. If I set in/out_cables
to 0x000b, a 3rd interface appears on the driver, but it does nothing.
Changing it to 0x000f allows the 3rd interface to work, but of course
interface 4 does not work because it does not exist.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Modules: USB generic driver
On the Audigy 2 ZS, disable all sample rate that are not a multiple of
48 kHz because the others work only with the digital output which is
not yet supported.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: USB generic driver
Some widespread USB interface chips with adaptive iso endpoints hang
after receiving a series of empty packets when they expect data (ALSA
bug#1585). To avoid this, we have to send packets containing silence
(zero samples) instead.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Modules: USB generic driver
Somebody at Edirol fucked up and released a new revision of the UA-20
without class-specific descriptors, so now we have to hard-code the
sample format.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
