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Commit f1d23ed8 authored by Claudio Scordino's avatar Claudio Scordino Committed by Jesper Nilsson
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CRIS: ioctl for getting RS485 information 



Add ioctl to CRIS serial driver to get RS485 data from user-space.

Signed-off-by: default avatarClaudio Scordino <claudio@evidence.eu.com>
Signed-off-by: default avatarJesper Nilsson <jesper.nilsson@axis.com>
parent 9fe6206f

arch/cris/include/asm/ioctls.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -77,6 +77,7 @@ 
#define TIOCSERSETRS485	0x5461  /* enable rs-485 (deprecated) */

#define TIOCSERSETRS485	0x5461  /* enable rs-485 (deprecated) */

#define TIOCSERWRRS485	0x5462  /* write rs-485 */

#define TIOCSERWRRS485	0x5462  /* write rs-485 */

#define TIOCSRS485	0x5463  /* enable rs-485 */

#define TIOCSRS485	0x5463  /* enable rs-485 */

#define TIOCGRS485	0x542E  /* get rs-485 */





/* Used for packet mode */

/* Used for packet mode */

#define TIOCPKT_DATA		 0

#define TIOCPKT_DATA		 0

drivers/serial/crisv10.c

+11 −0
Original line number Original line Diff line number Diff line
@@ -3724,6 +3724,17 @@ rs_ioctl(struct tty_struct *tty, struct file * file, 
		return e100_enable_rs485(tty, &rs485data);

		return e100_enable_rs485(tty, &rs485data);

	}

	}





	case TIOCGRS485:

	{

		struct serial_rs485 *rs485data =

			&(((struct e100_serial *)tty->driver_data)->rs485);

		/* This is the ioctl to get RS485 data from user-space */

		if (copy_to_user((struct serial_rs485 *) arg,

					rs485data,

					sizeof(serial_rs485)))

			return -EFAULT;

		break;

	}





	case TIOCSERWRRS485:

	case TIOCSERWRRS485:

	{

	{