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ALSA: control: Fix incompatible protocol error

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The recent change to bump the ALSA control API protocol version from
2.0.7 to 2.1.0 caused a regression on user-space; while the user-space
expects both the major and the minor versions to be identical with the
supported numbers, we changed the minor number from 0 to 1.

For recovering from the incompatibility, this patch changes the
protocol version again to 2.0.8, which is compatible, but yet higher
than the original number 2.0.7, indicating that the protocol change.

Fixes: bd3eb4e87e ("ALSA: ctl: bump protocol version up to v2.1.0")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/s5h1rsr769i.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-26 11:03:53 +01:00
parent d61fe22c2a
commit a103a39899
1 changed files with 1 additions and 1 deletions
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2
include/uapi/sound/asound.h
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@ -936,7 +936,7 @@ struct snd_timer_tread {
* *
****************************************************************************/
#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 1, 0)
#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 8)
struct snd_ctl_card_info {
int card; /* card number */