USB: pxa27x_udc: compatibility with pxa320 SoC

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Got pxa27x_udc working on the pxa320 Nomad platform.  The
problem was that the pxa3xx UDC is not quite compatible with
the pxa27x UDC in how it handles back-to-back control
packets.  The pxa27x probably drops them by default, but the
pxa320 does not, and you have to detect it and set the OPC
bit to clear the zero-length packet.

Signed-off-by: Aric Blumer <aric@sdgsystems.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

...

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Robert Jarzmik 2009-04-21 20:34:44 -07:00 • committed by Greg Kroah-Hartman

parent f6d529f936

commit 9f5351b743

2 changed files with 13 additions and 2 deletions

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2

drivers/usb/gadget/Kconfig

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13

drivers/usb/gadget/pxa27x_udc.c

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