USB: device DMA support on OMAP2

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The current omap udc dosen't support the DMA mode and it has some problem
at setup time on OMAP2 with previous patch file.  I found that the code
assumes bulk out required the big data transfer.  But MODE SELECT(6) sent
the only 24 bytes.  it makes a problem.  So I implement the small packets
handling for it.

It is tested with both linux and windows.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Kyungmin Park 2007-11-21 15:13:15 -08:00 • committed by Greg Kroah-Hartman

parent 568fdade14

commit 527ea73eae

1 changed files with 49 additions and 22 deletions

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drivers/usb/gadget/omap_udc.c

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