media: si470x-usb: refactor endpoint lookup

Use the common USB helper for looking up interrupt-in endpoints instead
of open coding.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Johan Hovold 2026-03-30 12:11:36 +02:00 • committed by Hans Verkuil
commit 99feb05904