mirror of
https://gitee.com/openharmony/kernel_linux
synced 2025-05-24 23:56:33 +00:00

The I2C specification explicitly describes both SDA and SCL as bidirectional lines. An I2C master with a read-only SCL is thus not compliant. If a slow slave stretches the clock, errors will happen, so the bus can't be considered as reliable. Signed-off-by: Jean Delvare <khali@linux-fr.org>