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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 21:04:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-09 21:04:23 -0700 |
| commit | 7fbd15f9b42f2c30ceeb94776a111d0c28669e0c (patch) | |
| tree | a196404c795091aae4254c9d479dce1c0653e4c5 | |
| parent | 1989425a3aed215f1accd5d8019b18b345166a63 (diff) | |
| parent | f1d23ed8218ca5afaf178a6495253dbb7fc98f57 (diff) | |
Merge branch 'rs485fix' of git://www.jni.nu/cris
* 'rs485fix' of git://www.jni.nu/cris:
CRIS: ioctl for getting RS485 information
| -rw-r--r-- | arch/cris/include/asm/ioctls.h | 1 | ||||
| -rw-r--r-- | drivers/serial/crisv10.c | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/cris/include/asm/ioctls.h b/arch/cris/include/asm/ioctls.h index 35bbc181598a..076c07824eb6 100644 --- a/arch/cris/include/asm/ioctls.h +++ b/arch/cris/include/asm/ioctls.h @@ -77,6 +77,7 @@ #define TIOCSERSETRS485 0x5461 /* enable rs-485 (deprecated) */ #define TIOCSERWRRS485 0x5462 /* write rs-485 */ #define TIOCSRS485 0x5463 /* enable rs-485 */ +#define TIOCGRS485 0x542E /* get rs-485 */ /* Used for packet mode */ #define TIOCPKT_DATA 0 diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c index 31f172397af3..30626440a062 100644 --- a/drivers/serial/crisv10.c +++ b/drivers/serial/crisv10.c @@ -3724,6 +3724,17 @@ rs_ioctl(struct tty_struct *tty, struct file * file, 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: { |