On Saturday 17 January 2009, Robert Jarzmik wrote:
> My understanding of the gadget API is that it is the "setup()" duty to disable
> unecessary endpoints by calling pxa_ep_disable() when needed.
Of the three "disable that endpoint" cases that come quickly to
mind, two are driven by the gadget driver's setup() callback:
- SET_CONFIGURATION ... puts a bunch of interfaces in altsetting 0
and guarantees all other endpoints are disabled
- SET_INTERFACE ... puts one interface in arbitrary altsetting,
which can involve enabling/disabling any number of endpoints
- disconnect ... scrubs all endpoint state
Those first two are "config change events". SET_CONFIGURATION to zero
disables all endpoints except EP0.
- Dave
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