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Date: Mon, 9 Sep 2013 09:25:10 +0200
From: Benedikt Spranger <b.spranger@...utronix.de>
To: netdev@...r.kernel.org
Cc: Alexander Frank <Alexander.Frank@...rspaecher.com>,
Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Holger Dengler <dengler@...utronix.de>,
Benedikt Spranger <b.spranger@...utronix.de>
Subject: [PATCH 13/16] c_can: flexcard: add ioctl to reset FIFO message object
The FlexCard FIFO reset implementation did not reset the FIFO message object.
Since the FIFO configuration is done from userspace a function to reset the
FIFO message object is needed. Add an ioctl to reset the FIFO message object
from userspace.
Signed-off-by: Benedikt Spranger <b.spranger@...utronix.de>
---
drivers/net/can/c_can/c_can.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 51ca2a6..670a6b1 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -1447,7 +1447,21 @@ void free_c_can_dev(struct net_device *dev)
}
EXPORT_SYMBOL_GPL(free_c_can_dev);
+static int c_can_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ switch (cmd) {
+ case SIOCDEVPRIVATE:
+ c_can_inval_msg_object(dev, 0, FC_TXFIFO_MO);
+ break;
+ default:
+ return -ENOIOCTLCMD;
+ }
+
+ return 0;
+}
+
static const struct net_device_ops c_can_netdev_ops = {
+ .ndo_do_ioctl = c_can_ioctl,
.ndo_open = c_can_open,
.ndo_stop = c_can_close,
.ndo_start_xmit = c_can_start_xmit,
--
1.8.4.rc3
--
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