Re: [PATCH 1/2] serial/8250: Add support for RS485 IOCTLs

From: Ricardo Ribalda Delgado
Date: Thu Jul 31 2014 - 12:19:04 EST

Hello Alan

> Is there any reasons we can't have uart_ops.rs485_config and the RS485
> ioctl logic in the serial_core, or even push rs485_get/put into the tty
> ioctl handler and tty ops so it's not duplicated everywhere ?

What about a step by step approach. First we add this code to the
8250_core, and then I remove all the specific driver
TIOCSRS485 handling and manage it through serial_core.c

Right now these are the drivers using it:

drivers/tty/serial/8250/8250_core.c: case TIOCSRS485:
drivers/tty/serial/atmel_serial.c: case TIOCSRS485:
drivers/tty/serial/crisv10.c: case TIOCSRS485:
drivers/tty/serial/max310x.c: case TIOCSRS485:
drivers/tty/serial/mcf.c: case TIOCSRS485: {
drivers/tty/serial/omap-serial.c: case TIOCSRS485:
rivers/tty/serial/sc16is7xx.c: case TIOCSRS485:


Ricardo Ribalda
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