Andrzej Pietrasiewicz fd83ff901d usb: gadget: webcam: Make g_webcam loadable again ... [ Upstream commit f1fd91a092 ] commit 588b9e8560 ("usb: gadget: uvc: add v4l2 enumeration api calls") has rendered the precomposed (aka legacy) webcam gadget unloadable. uvc_alloc() since then has depended on certain config groups being available in configfs tree related to the UVC function. However, legacy gadgets do not create anything in configfs, so uvc_alloc() must fail with -ENOENT no matter what. This patch mimics the required configfs hierarchy to satisfy the code which inspects formats and frames found in uvcg_streaming_header. This has been tested with guvcview on the host side, using vivid as a source of video stream on the device side and using the userspace program found at https://gitlab.freedesktop.org/camera/uvc-gadget.git. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Fixes: 588b9e8560 ("usb: gadget: uvc: add v4l2 enumeration api calls") Link: https://lore.kernel.org/r/20231215131614.29132-1-andrzej.p@collabora.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-01-25 15:35:53 -08:00
..
acm_ms.c
audio.c	usb: gadget: audio: Add HS/SS bInterval params for UAC2	2022-01-31 14:26:18 +01:00
cdc2.c
dbgp.c	USB: gadget: Rename usb_gadget_probe_driver()	2022-04-26 14:00:13 +02:00
ether.c
g_ffs.c	usb: gadget: legacy: fix error return code in gfs_bind	2023-06-21 18:08:07 +02:00
gmidi.c
hid.c	usb: gadget: hid: Convert to platform remove callback returning void	2023-05-28 12:36:25 +01:00
inode.c	usb: convert to ctime accessor functions	2023-07-13 10:28:03 +02:00
Kconfig	media: Kconfig: cleanup VIDEO_DEV dependencies	2022-03-18 05:58:35 +01:00
Makefile
mass_storage.c
multi.c
ncm.c
nokia.c
printer.c
raw_gadget.c	usb: raw-gadget: properly handle interrupted requests	2023-11-08 11:56:22 +01:00
serial.c	usb: gadget: Use kstrtobool() instead of strtobool()	2022-11-03 23:46:01 +09:00
tcm_usb_gadget.c
webcam.c	usb: gadget: webcam: Make g_webcam loadable again	2024-01-25 15:35:53 -08:00
zero.c