usb: gadget: uvc: configfs: Allocate groups dynamically

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The UVC configfs implementation creates all groups as global static
variables. This prevents creation of multiple UVC function instances,
as they would all require their own configfs group instances.

Fix this by allocating all groups dynamically. To avoid duplicating code
around, extend the config_item_type structure with group name and
children, and implement helper functions to create children
automatically for most groups.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

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This commit is contained in:

Laurent Pinchart 2018-05-24 17:49:34 +03:00

parent 86f3daed59

commit efbf0af70b

2 changed files with 338 additions and 251 deletions

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8

drivers/usb/gadget/function/f_uvc.c

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577

drivers/usb/gadget/function/uvc_configfs.c

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