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Merge branch 'rs485fix' of git://www.jni.nu/cris 

* 'rs485fix' of git://www.jni.nu/cris:
  CRIS: ioctl for getting RS485 information
This commit is contained in:
Linus Torvalds 2010-08-09 21:04:23 -07:00
parent 1989425a3a f1d23ed821
commit 7fbd15f9b4
2 changed files with 12 additions and 0 deletions
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1
arch/cris/include/asm/ioctls.h
View File

@ -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

11
drivers/serial/crisv10.c
View File

@ -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:
{ {