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transport: modify interface to support disappearing devices.

This commit is contained in:
Daniel Beer 2013-07-18 13:56:26 +12:00
parent d54cf16a13
commit b407fca15e
1 changed files with 10 additions and 0 deletions
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10
transport/transport.h
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@ -55,6 +55,16 @@ struct transport_class {
* error occurs. * error occurs.
*/ */
int (*set_modem)(transport_t tr, transport_modem_t state); int (*set_modem)(transport_t tr, transport_modem_t state);
/* This pair of optional methods allows a transport to survive a
* USB device reset. Before an impending reset, suspend() should
* be called to release references to the bus. After the reset
* is completed, resume() should be called to reattach.
*
* It is an error to invoke IO methods on a suspended device.
*/
int (*suspend)(transport_t tr);
int (*resume)(transport_t tr);
}; };
struct transport { struct transport {