Implement different sync method, replace previous signal with ioctl Related functions were added (cherry-pick from : adc4bc267e5c3a33ca802de83e2693638a7be8e8) Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
Implement different sync method, replace previous signal with ioctl Related functions were added (cherry-pick from : adc4bc267e5c3a33ca802de83e2693638a7be8e8) Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>