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| author | Takashi Iwai <tiwai@suse.de> | 2008-04-25 09:13:45 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-04-29 19:01:56 +0200 |
| commit | df7e3fdf83699328d1fdf7000ce0dc852fbb0ad9 (patch) | |
| tree | dc5ca06bc0754352c8adf201b4f950d7fbf7c0b1 /sound/drivers | |
| parent | a01e035ebb552223c03f2d9138ffc73f2d4d3965 (diff) | |
| download | lwn-df7e3fdf83699328d1fdf7000ce0dc852fbb0ad9.tar.gz lwn-df7e3fdf83699328d1fdf7000ce0dc852fbb0ad9.zip | |
[ALSA] Add MPU401_INFO_NO_ACK bitflag
Added MPU401_INFO_NO_ACK bitflag to ignore the ACK check for UART
commands. VT172x doesn't handle ACK commands, for example.
Tested-by: Pavel Hofman <pavel.hofman@insite.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/drivers')
| -rw-r--r-- | sound/drivers/mpu401/mpu401_uart.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c index 18cca2457d44..2af09996a3d0 100644 --- a/sound/drivers/mpu401/mpu401_uart.c +++ b/sound/drivers/mpu401/mpu401_uart.c @@ -243,7 +243,7 @@ static int snd_mpu401_uart_cmd(struct snd_mpu401 * mpu, unsigned char cmd, #endif } mpu->write(mpu, cmd, MPU401C(mpu)); - if (ack) { + if (ack && !(mpu->info_flags & MPU401_INFO_NO_ACK)) { ok = 0; timeout = 10000; while (!ok && timeout-- > 0) { |