Commit e4e92ee7 authored by Loic Poulain's avatar Loic Poulain Committed by David S. Miller
Browse files

net: wwan: core: Add WWAN device index sysfs attribute 



Add index sysfs attribute for WWAN devices. This index is used to
uniquely indentify and reference a WWAN device. 'index' is the
attribute name that other device classes use (wireless, v4l2-dev,
rfkill, etc...).

Signed-off-by: default avatarLoic Poulain <loic.poulain@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1b19b3f7

drivers/net/wwan/wwan_core.c

+15 −0
Original line number Diff line number Diff line
@@ -63,6 +63,20 @@ struct wwan_port { 
	wait_queue_head_t waitqueue;

};



static ssize_t index_show(struct device *dev, struct device_attribute *attr, char *buf)

{

	struct wwan_device *wwan = to_wwan_dev(dev);



	return sprintf(buf, "%d\n", wwan->id);

}

static DEVICE_ATTR_RO(index);



static struct attribute *wwan_dev_attrs[] = {

	&dev_attr_index.attr,

	NULL,

};

ATTRIBUTE_GROUPS(wwan_dev);



static void wwan_dev_destroy(struct device *dev)

{

	struct wwan_device *wwandev = to_wwan_dev(dev);
@@ -74,6 +88,7 @@ static void wwan_dev_destroy(struct device *dev) 
static const struct device_type wwan_dev_type = {

	.name    = "wwan_dev",

	.release = wwan_dev_destroy,

	.groups = wwan_dev_groups,

};



static int wwan_dev_parent_match(struct device *dev, const void *parent)