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由 Lennert Buytenhek 提交于
Patch from Lennert Buytenhek Add support for setting the direction of and getting/setting the value of the 64 GPIO lines. Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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