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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 /include/sound/mpu401.h | |
| 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 'include/sound/mpu401.h')
| -rw-r--r-- | include/sound/mpu401.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/mpu401.h b/include/sound/mpu401.h index 68b634b75068..1f1d53f8830b 100644 --- a/include/sound/mpu401.h +++ b/include/sound/mpu401.h @@ -50,6 +50,7 @@ #define MPU401_INFO_INTEGRATED (1 << 2) /* integrated h/w port */ #define MPU401_INFO_MMIO (1 << 3) /* MMIO access */ #define MPU401_INFO_TX_IRQ (1 << 4) /* independent TX irq */ +#define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */ #define MPU401_MODE_BIT_INPUT 0 #define MPU401_MODE_BIT_OUTPUT 1 |