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authorDavid Brownell <dbrownell@users.sourceforge.net>2008-08-18 17:38:22 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-17 14:40:53 -0700
commit60beed95e38793c0baff7f94433c1f639d8d5efd (patch)
treef35e277cdd32267772854b481843299564e4f3e8 /Documentation
parent8066134ff8140ae9d8d15cdad3fc6c60c2a8a4e5 (diff)
usb gadget: function activation/deactivation
Add a new mechanism to the composite gadget framework, letting functions deactivate (and reactivate) themselves. Think of it as a refcounted wrapper for the software pullup control. A key example of why to use this mechanism involves functions that require a userspace daemon. Those functions shuld use this new mechanism to prevent the gadget from enumerating until those daemons are activated. Without this mechanism, hosts would see devices that malfunction until the relevant daemons start. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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