diff options
| author | Daniele Palmas <dnlplm@gmail.com> | 2021-01-27 16:34:32 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-29 03:00:02 +0100 |
| commit | e594ad980ec26fb7351d02c84abaa77ecdb4e522 (patch) | |
| tree | 33eb0c6d191ea3716737338bfc9c3b0169044ec9 | |
| parent | ipvlan: remove h from printk format specifier (diff) | |
| download | linux-e594ad980ec26fb7351d02c84abaa77ecdb4e522.tar.xz linux-e594ad980ec26fb7351d02c84abaa77ecdb4e522.zip | |
net: usb: qmi_wwan: add qmap id sysfs file for qmimux interfaces
Add qmimux interface sysfs file qmap/mux_id to show qmap id set
during the interface creation, in order to provide a method for
userspace to associate QMI control channels to network interfaces.
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/usb/qmi_wwan.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index b96a3dc775a4..29568ea8a9f2 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -218,6 +218,28 @@ skip: return 1; } +static ssize_t mux_id_show(struct device *d, struct device_attribute *attr, char *buf) +{ + struct net_device *dev = to_net_dev(d); + struct qmimux_priv *priv; + + priv = netdev_priv(dev); + + return sysfs_emit(buf, "0x%02x\n", priv->mux_id); +} + +static DEVICE_ATTR_RO(mux_id); + +static struct attribute *qmi_wwan_sysfs_qmimux_attrs[] = { + &dev_attr_mux_id.attr, + NULL, +}; + +static struct attribute_group qmi_wwan_sysfs_qmimux_attr_group = { + .name = "qmap", + .attrs = qmi_wwan_sysfs_qmimux_attrs, +}; + static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) { struct net_device *new_dev; @@ -240,6 +262,8 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id) goto out_free_newdev; } + new_dev->sysfs_groups[0] = &qmi_wwan_sysfs_qmimux_attr_group; + err = register_netdevice(new_dev); if (err < 0) goto out_free_newdev; |