From f1d23ed8218ca5afaf178a6495253dbb7fc98f57 Mon Sep 17 00:00:00 2001
From: Claudio Scordino <claudio@evidence.eu.com>
Date: Mon, 31 May 2010 10:19:09 +0200
Subject: CRIS: ioctl for getting RS485 information
Add ioctl to CRIS serial driver to get RS485 data from user-space.
Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
drivers/serial/crisv10.c | 11 +++++++++++
1 file changed, 11 insertions(+)
(limited to 'drivers/serial')
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:
{
--
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