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| author | Clemens Ladisch <clemens@ladisch.de> | 2011-10-07 22:38:59 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-10-09 09:09:11 +0200 |
| commit | 8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4 (patch) | |
| tree | 5a325ffbc56a6260d933c1997b5f36ba1f3ab165 /sound/core/control_compat.c | |
| parent | f92766bc8948f978a838a5607bea95804c8dfdfe (diff) | |
| download | lwn-8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4.tar.gz lwn-8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4.zip | |
ALSA: control: add support for ENUMERATED user space controls
Handling of user control elements was implemented for all types except
ENUMERATED. This type will be needed for the device-specific mixers of
upcoming FireWire drivers.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/control_compat.c')
| -rw-r--r-- | sound/core/control_compat.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c index 426874429a5e..2bb95a7a8809 100644 --- a/sound/core/control_compat.c +++ b/sound/core/control_compat.c @@ -83,6 +83,8 @@ struct snd_ctl_elem_info32 { u32 items; u32 item; char name[64]; + u64 names_ptr; + u32 names_length; } enumerated; unsigned char reserved[128]; } value; @@ -372,6 +374,8 @@ static int snd_ctl_elem_add_compat(struct snd_ctl_file *file, &data32->value.enumerated, sizeof(data->value.enumerated))) goto error; + data->value.enumerated.names_ptr = + (uintptr_t)compat_ptr(data->value.enumerated.names_ptr); break; default: break; |