On Wed, 10 Oct 2012 15:05:06 +0200 Jarkko Huijts <[email protected]> wrote:
> From: Jarkko Huijts <[email protected]> > > The driver does not wait until the hardware buffer (for data from the PC to > the > UART line) is drained when tcdrain or close is called in an application. > Solution: Implement a chars_in_buffer function that checks both the software > and hardware buffer. If the TEMT (TX empty) bit of the line status register > indicates the hw buffer is not empty, let the function return at least 1. This > has been verified to work correctly with an FT232RL. The check on the hw > buffer > can not be done for the original SIO device. > > Signed-off-by: Jarkko Huijts <[email protected]> Acked-by: Alan Cox <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
