Clemens Ladisch b01ae289a3 ALSA: usb-audio: disable autopm for MIDI devices ... commit cbc200bca4 upstream. Commit 88a8516a21 (ALSA: usbaudio: implement USB autosuspend) introduced autopm for all USB audio/MIDI devices. However, many MIDI devices, such as synthesizers, do not merely transmit MIDI messages but use their MIDI inputs to control other functions. With autopm, these devices would get powered down as soon as the last MIDI port device is closed on the host. Even some plain MIDI interfaces could get broken: they automatically send Active Sensing messages while powered up, but as soon as these messages cease, the receiving device would interpret this as an accidental disconnection. Commit f5f165418c (ALSA: usb-audio: Fix missing autopm for MIDI input) introduced another regression: some devices (e.g. the Roland GAIA SH-01) are self-powered but do a reset whenever the USB interface's power state changes. To work around all this, just disable autopm for all USB MIDI devices. Reported-by: Laurens Holst Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-05-07 19:51:55 -07:00
..
aoa
arm	ALSA: pxa27x: fix ac97 warm reset	2013-01-17 08:50:55 -08:00
atmel	dmaengine/dw_dmac: Fix dw_dmac user drivers to adapt to slave_config changes	2012-02-22 18:15:39 +05:30
core	vm: convert snd_pcm_lib_mmap_iomem() to vm_iomap_memory() helper	2013-04-25 21:19:56 -07:00
drivers	ALSA: aloop - add locking to timer access	2012-10-13 05:38:51 +09:00
firewire	IEEE 1394 (FireWire) subsystem updates post v3.3:	2012-03-22 20:31:15 -07:00
i2c	[media] tea575x: fix HW seek	2012-03-19 11:28:52 -03:00
isa	ALSA: sound/isa/sscape.c: add missing resource-release code	2012-04-10 08:42:07 +02:00
mips
oss	sound: sound/oss/msnd_pinnacle.c: add vfrees	2012-04-10 08:41:54 +02:00
parisc
pci	ALSA: hda - fix typo in proc output	2013-04-12 09:38:44 -07:00
pcmcia
ppc
sh
soc	ASoC: wm8903: Fix the bypass to HP/LINEOUT when no DAC or ADC is running	2013-04-16 21:27:26 -07:00
sparc
spi
synth
usb	ALSA: usb-audio: disable autopm for MIDI devices	2013-05-07 19:51:55 -07:00
ac97_bus.c
Kconfig
last.c	ALSA: workaround: change the timing of alsa_sound_last_init()	2012-04-19 13:51:54 +02:00
Makefile
sound_core.c
sound_firmware.c