* fill struct according to the member order
* add error clean up
* set min/max spi speed. so we don't need to check again
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47576
use loops_per_jiffy, spi clock speed and write bytes to get the
spi loop count. if loop to 0 than spi operation timeout.
remove usleep. we only write 1 byte to spi device. use busy loop
would be better.
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47575
