greybus: es1-ap-usb: document the lack of callback for the outgoing bulk urbs

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We don't need a callback for bulk out urbs to do anything except put the
urb back in the pool.  Document why we do this and what is involved.

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

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Greg Kroah-Hartman 2014-10-28 18:20:24 +08:00

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commit f9ab34c2bf

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drivers/staging/greybus/es1-ap-usb.c

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