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ALSA: usb-audio: Add snd_usb_get_host_interface() helper
authorTakashi Iwai <tiwai@suse.de>
Mon, 23 Nov 2020 08:53:22 +0000 (09:53 +0100)
committerTakashi Iwai <tiwai@suse.de>
Mon, 23 Nov 2020 14:13:47 +0000 (15:13 +0100)
commite42a09bc520e94375501a8f8e769b867d8063d9d
treeea21c41927922dbf767558e1dfb8a2a6883aa787tree | snapshot
parent982150560c7c1310d8826abf73857b76000e7db8commit | diff
ALSA: usb-audio: Add snd_usb_get_host_interface() helper

Add a helper function to retrieve the usb_host_interface object from
the given interface and altsetting number pair, which is a commonly
used procedure in the driver code.

No functional changes, just minor code refactoring.

Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-17-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/helper.c diff | blob | history
sound/usb/helper.h diff | blob | history
sound/usb/pcm.c diff | blob | history
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