[PATCH] serial: imx: add rx and tx led trigger
From: Uwe Kleine-König <hidden>
Date: 2016-07-04 15:50:09
Also in:
linux-serial
On Mon, Jul 04, 2016 at 05:43:03PM +0200, Arnd Bergmann wrote:
On Monday, July 4, 2016 5:34:12 PM CEST Uwe Kleine-K?nig wrote:quoted
Add support for two led triggers per UART instance that blink on transmission and reception of data respectively. Signed-off-by: Uwe Kleine-K?nig <redacted> --- drivers/tty/serial/imx.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+)What is specific to this driver here? Could this be done in the core tty code instead?
The core doesn't notice when the driver starts to push out characters. I also have a patch in my queue that adds support for rts delaying in rs485 mode. While the delay between start_tx being called and the first char leaving the hardware might not be big enough to care in rs232 mode, with a big delay_rts_before_send it might matter. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-K?nig | Industrial Linux Solutions | http://www.pengutronix.de/ |