usb: gadget: introduce 'enabled' flag in struct usb_ep

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This patch introduces 'enabled' flag in struct usb_ep, and modifies
usb_ep_enable() and usb_ep_disable() functions to encapsulate endpoint
enabled/disabled state. It helps to avoid enabling endpoints which are
already enabled, and disabling endpoints which are already disables.

From now USB functions don't have to remember current endpoint
enable/disable state, as this state is now handled automatically which
makes this API less bug-prone.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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Robert Baldyga 2015-09-16 12:10:42 +02:00 • committed by Felipe Balbi

parent b67f628c84

commit b0bac2581c

1 changed files with 25 additions and 2 deletions

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27

include/linux/usb/gadget.h

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