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authorTakashi Iwai <tiwai@suse.de>2007-02-22 18:07:21 +0300
committerJaroslav Kysela <perex@suse.cz>2007-05-11 18:55:43 +0400
commit8f7ba051d2abb3d3bde9b95e47246c60b704d2b4 (patch)
tree6b1fcd728b520ca24c99672c873ed17b43ac3b9f /include/sound
parent76e630677419ecf2cf8c0b738536eee34dc048e6 (diff)
downloadlinux-8f7ba051d2abb3d3bde9b95e47246c60b704d2b4.tar.xz
[ALSA] mpu401 - Add MPU401_INFO_UART_ONLY bitflag
Added MPU401_INFO_UART_ONLY bitflag to avoid issueing UART_ENTER command at opening streams. Some devices support only UART mode and give errors to UART_ENTER. A new module option, uart_enter, is added to snd-mpu401 driver. For UART-only devices, set uart_enter=0. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/mpu401.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/mpu401.h b/include/sound/mpu401.h
index 8c88267e9bea..d5c1396c4c9e 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_UART_ONLY (1 << 5) /* No ENTER_UART cmd needed */
#define MPU401_MODE_BIT_INPUT 0
#define MPU401_MODE_BIT_OUTPUT 1