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| author | Takashi Iwai <tiwai@suse.de> | 2020-11-23 09:53:36 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-11-23 15:16:04 +0100 |
| commit | 6aa719d15a1903eb3fd0e052ae53f3b024ad4d05 (patch) | |
| tree | 026ff7427535388baf0850e848991c535c3bb0a1 /sound/usb/card.h | |
| parent | d0f09d1e4a88647695739d2ff4268e9fdcf5b35d (diff) | |
| download | linux-next-6aa719d15a1903eb3fd0e052ae53f3b024ad4d05.tar.gz | |
ALSA: usb-audio: Drop unneeded snd_usb_substream fields
Some fields like interface and alt_idx in snd_usb_substream are mostly
useless now as they can be referred via either cur_audiofmt or
data_endpoint assigned to the substream. Drop those, and also assure
the concurrency about the access of cur_audiofmt field.
Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/card.h')
| -rw-r--r-- | sound/usb/card.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/sound/usb/card.h b/sound/usb/card.h index f58c3769b058..1dd7a514d1d5 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -140,18 +140,10 @@ struct snd_usb_substream { struct usb_device *dev; struct snd_pcm_substream *pcm_substream; int direction; /* playback or capture */ - int interface; /* current interface */ int endpoint; /* assigned endpoint */ const struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ struct snd_usb_power_domain *str_pd; /* UAC3 Power Domain for streaming path */ - snd_pcm_format_t pcm_format; /* current audio format (for hw_params callback) */ - unsigned int channels; /* current number of channels (for hw_params callback) */ unsigned int channels_max; /* max channels in the all audiofmts */ - unsigned int cur_rate; /* current rate (for hw_params callback) */ - unsigned int period_bytes; /* current period bytes (for hw_params callback) */ - unsigned int period_frames; /* current frames per period */ - unsigned int buffer_periods; /* current periods per buffer */ - unsigned int altset_idx; /* USB data format: index of alternate setting */ unsigned int txfr_quirk:1; /* allow sub-frame alignment */ unsigned int tx_length_quirk:1; /* add length specifier to transfers */ unsigned int fmt_type; /* USB audio format type (1-3) */ |