Commit 102882b5 authored by Oswald Buddenhagen's avatar Oswald Buddenhagen Committed by Takashi Iwai
Browse files

ALSA: document that struct __snd_pcm_mmap_control64 is messed up 

I'm not the first one to run into this, see e.g.
https://lore.kernel.org/all/29QBMJU8DE71E.2YZSH8IHT5HMH@mforney.org/



Signed-off-by: default avatarOswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230406132521.2252019-1-oswald.buddenhagen@gmx.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent d3330cb8

include/uapi/sound/asound.h

+2 −1
Original line number Diff line number Diff line
@@ -570,7 +570,8 @@ struct __snd_pcm_mmap_status64 { 
struct __snd_pcm_mmap_control64 {

	__pad_before_uframe __pad1;

	snd_pcm_uframes_t appl_ptr;	 /* RW: appl ptr (0...boundary-1) */

	__pad_before_uframe __pad2;

	__pad_before_uframe __pad2;	 // This should be __pad_after_uframe, but binary

					 // backwards compatibility constraints prevent a fix.



	__pad_before_uframe __pad3;

	snd_pcm_uframes_t  avail_min;	 /* RW: min available frames for wakeup */