diff options
| author | Julian Scheel <julian@jusst.de> | 2015-08-14 16:14:45 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-04-06 10:56:30 -0400 |
| commit | 8d34309045f7d29641305cb2340df008b22c4c5c (patch) | |
| tree | b5b63a3e213f1c99e774a653d3db79719f1ab896 /sound/usb/mixer.h | |
| parent | 97828b710a99325ef8ffeeac7f9f3e356419ed51 (diff) | |
ALSA: usb-audio: Fix parameter block size for UAC2 control requests
[ Upstream commit bc18e31c3042f14fa5f2ff5c21136e2fdf4140f8 ]
USB Audio Class version 2.0 supports three different parameter block sizes for
CUR requests, which are 1 byte (5.2.3.1 Layout 1 Parameter Block), 2 bytes
(5.2.3.2 Layout 2 Parameter Block) and 4 bytes (5.2.3.3 Layout 3 Parameter
Block). Use the correct size according to the specific control as it was
already done for UACv1. The allocated block size for control requests is
increased to support the 4 byte worst case.
Signed-off-by: Julian Scheel <julian@jusst.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'sound/usb/mixer.h')
| -rw-r--r-- | sound/usb/mixer.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index d3268f0ee2b3..3417ef347e40 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -33,6 +33,8 @@ enum { USB_MIXER_U8, USB_MIXER_S16, USB_MIXER_U16, + USB_MIXER_S32, + USB_MIXER_U32, }; typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, |