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| author |   Jiri Pirko <jiri@resnulli.us> | 2012-12-27 23:49:38 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-12-28 15:24:18 -0800 |
| commit | fdae0fde5352790030d89edd09f1b43b9bed97f8 (patch) | |
| tree | 82e36fa133aa034ca39f9f576c3d4022cba24648 /net/core | |
| parent | net: add change_carrier netdev op (diff) | |
| download | linux-dev-fdae0fde5352790030d89edd09f1b43b9bed97f8.tar.xz linux-dev-fdae0fde5352790030d89edd09f1b43b9bed97f8.zip | |
net: allow to change carrier via sysfs
Make carrier writable
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/net-sysfs.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 28c5f5aa7ca7..29c884a74c38 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -126,6 +126,19 @@ static ssize_t show_broadcast(struct device *dev, return -EINVAL; } +static int change_carrier(struct net_device *net, unsigned long new_carrier) +{ + if (!netif_running(net)) + return -EINVAL; + return dev_change_carrier(net, (bool) new_carrier); +} + +static ssize_t store_carrier(struct device *dev, struct device_attribute *attr, + const char *buf, size_t len) +{ + return netdev_store(dev, attr, buf, len, change_carrier); +} + static ssize_t show_carrier(struct device *dev, struct device_attribute *attr, char *buf) { @@ -331,7 +344,7 @@ static struct device_attribute net_class_attributes[] = { __ATTR(link_mode, S_IRUGO, show_link_mode, NULL), __ATTR(address, S_IRUGO, show_address, NULL), __ATTR(broadcast, S_IRUGO, show_broadcast, NULL), - __ATTR(carrier, S_IRUGO, show_carrier, NULL), + __ATTR(carrier, S_IRUGO | S_IWUSR, show_carrier, store_carrier), __ATTR(speed, S_IRUGO, show_speed, NULL), __ATTR(duplex, S_IRUGO, show_duplex, NULL), __ATTR(dormant, S_IRUGO, show_dormant, NULL), |