From patchwork Wed Mar 29 12:28:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 13192351 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCA9DC6FD18 for ; Wed, 29 Mar 2023 12:29:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229827AbjC2M3D (ORCPT ); Wed, 29 Mar 2023 08:29:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229807AbjC2M3C (ORCPT ); Wed, 29 Mar 2023 08:29:02 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06BEE4229 for ; Wed, 29 Mar 2023 05:28:58 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 9DC80B822EF for ; Wed, 29 Mar 2023 12:28:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 786CAC433D2; Wed, 29 Mar 2023 12:28:54 +0000 (UTC) Message-ID: <4b1bc0d5-808b-816d-d7de-5baa8851e74f@xs4all.nl> Date: Wed, 29 Mar 2023 14:28:52 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Content-Language: en-US To: Linux Media Mailing List Cc: regressions@lists.linux.dev, Laurent Pinchart , Hans de Goede , "Linux regression tracking (Thorsten Leemhuis)" From: Hans Verkuil Subject: [PATCH] media: usb: uvc: fill in description for unknown pixelformats Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org If the fcc is 0 (indicating an unknown GUID format), then fill in the description field in ENUM_FMT. Otherwise the V4L2 core will WARN. Signed-off-by: Hans Verkuil Fixes: 50459f103edf ("media: uvcvideo: Remove format descriptions") Reviewed-by: Hans de Goede diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 7aefa76a42b3..2f1ced1212cd 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -256,6 +256,9 @@ static int uvc_parse_format(struct uvc_device *dev, } else { dev_info(&streaming->intf->dev, "Unknown video format %pUl\n", &buffer[5]); + snprintf(format->name, sizeof(format->name), "%pUl\n", + &buffer[5]); + format->fcc = 0; } diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c index 35453f81c1d9..fc6f9e7d8506 100644 --- a/drivers/media/usb/uvc/uvc_v4l2.c +++ b/drivers/media/usb/uvc/uvc_v4l2.c @@ -713,6 +713,10 @@ static int uvc_ioctl_enum_fmt(struct uvc_streaming *stream, if (format->flags & UVC_FMT_FLAG_COMPRESSED) fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; fmt->pixelformat = format->fcc; + if (format->name[0]) + strscpy(fmt->description, format->name, + sizeof(fmt->description)); + return 0; } diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 9a596c8d894a..22656755a801 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -264,6 +264,8 @@ struct uvc_format { u32 fcc; u32 flags; + char name[32]; + unsigned int nframes; struct uvc_frame *frame; };