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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2017-06-14 13:30:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 20:43:44 +0300 |
| commit | 946023a4b7ad1113f5f16d8dcfea83a0fa46a6ed (patch) | |
| tree | e5a6f863a748c641d73c6e442365f5f7b65f6ebc /sound/core/pcm_lib.c | |
| parent | 8663a3619807f685813658608c1addff2c9cd22f (diff) | |
| download | linux-946023a4b7ad1113f5f16d8dcfea83a0fa46a6ed.tar.xz | |
ALSA: pcm: remove SNDRV_PCM_IOCTL1_INFO internal command
commit e11f0f90a626f93899687b1cc909ee37dd6c5809 upstream.
Drivers can implement 'struct snd_pcm_ops.ioctl' to handle some requests
from ALSA PCM core. These requests are internal purpose in kernel land.
Usually common set of operations are used for it.
SNDRV_PCM_IOCTL1_INFO is one of the requests. According to code comment,
it has been obsoleted in the old days.
We can see old releases in ftp.alsa-project.org. The command was firstly
introduced in v0.5.0 release as SND_PCM_IOCTL1_INFO, to allow drivers to
fill data of 'struct snd_pcm_channel_info' type. In v0.9.0 release,
this was obsoleted by the other commands for ioctl(2) such as
SNDRV_PCM_IOCTL_CHANNEL_INFO.
This commit removes the long-abandoned command, bye.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/core/pcm_lib.c')
| -rw-r--r-- | sound/core/pcm_lib.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index f57a58ac7ae0..3acb373674c3 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -1849,8 +1849,6 @@ int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) { switch (cmd) { - case SNDRV_PCM_IOCTL1_INFO: - return 0; case SNDRV_PCM_IOCTL1_RESET: return snd_pcm_lib_ioctl_reset(substream, arg); case SNDRV_PCM_IOCTL1_CHANNEL_INFO: |