linux-kernel - [PATCH 0/4] Some fix patches for uvc gadget function

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Message-Id: <20260108-uvc-gadget-fix-patch-v1-0-8b571e5033cc@nxp.com>
Date: Thu, 08 Jan 2026 15:43:01 +0800
From: Xu Yang <xu.yang_2@....com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Michael Grzeschik <m.grzeschik@...gutronix.de>
Cc: jun.li@....com, imx@...ts.linux.dev, linux-usb@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Xu Yang <xu.yang_2@....com>, 
 stable@...r.kernel.org
Subject: [PATCH 0/4] Some fix patches for uvc gadget function

Recenly when test uvc gadget function I find some YUYV pixel format
720p and 1080p stream can't output normally. However, small resulution
and MJPEG format stream works fine. The first patch#1 is to fix the issue.

Patch#2 and #3 are small fix or improvement.

For patch#4: it's a workaround for a long-term issue in videobuf2. With
it, many device can work well and not solely based on the SG allocation
method.

Signed-off-by: Xu Yang <xu.yang_2@....com>
---
Xu Yang (4):
      usb: gadget: uvc: fix req_payload_size calculation
      usb: gadget: uvc: fix interval_duration calculation
      usb: gadget: uvc: improve error handling in uvcg_video_init()
      usb: gadget: uvc: retry vb2_reqbufs() with vb_vmalloc_memops if use_sg fail

 drivers/usb/gadget/function/f_uvc.c     |  4 ++++
 drivers/usb/gadget/function/uvc.h       |  3 ++-
 drivers/usb/gadget/function/uvc_queue.c | 23 +++++++++++++++++++----
 drivers/usb/gadget/function/uvc_video.c | 14 +++++++-------
 4 files changed, 32 insertions(+), 12 deletions(-)
---
base-commit: 56a512a9b4107079f68701e7d55da8507eb963d9
change-id: 20260108-uvc-gadget-fix-patch-aa5996332bb5

Best regards,
-- 
Xu Yang <xu.yang_2@....com>