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| author | Tomas Winkler <tomas.winkler@intel.com> | 2015-05-07 14:54:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-24 20:15:54 +0200 |
| commit | 007d64eb2232b91aa86b51abc1742936807e0bd4 (patch) | |
| tree | 337789bb1ffd7106a3f72210fcf7f864d70c6d58 /drivers/misc | |
| parent | mei: bus: report also uuid in module alias (diff) | |
| download | linux-007d64eb2232b91aa86b51abc1742936807e0bd4.tar.xz linux-007d64eb2232b91aa86b51abc1742936807e0bd4.zip | |
mei: bus: add name and uuid into device attributes
Export name and uuid via sysfs and uevent
Cc: linux-api@vger.kernel.org
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/mei/bus.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 17b00baa53b1..e76d94aa6e12 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -114,6 +114,31 @@ static int mei_cl_device_remove(struct device *dev) return driver->remove(device); } +static ssize_t name_show(struct device *dev, struct device_attribute *a, + char *buf) +{ + struct mei_cl_device *device = to_mei_cl_device(dev); + size_t len; + + len = snprintf(buf, PAGE_SIZE, "%s", device->name); + + return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; +} +static DEVICE_ATTR_RO(name); + +static ssize_t uuid_show(struct device *dev, struct device_attribute *a, + char *buf) +{ + struct mei_cl_device *device = to_mei_cl_device(dev); + const uuid_le *uuid = mei_me_cl_uuid(device->me_cl); + size_t len; + + len = snprintf(buf, PAGE_SIZE, "%pUl", uuid); + + return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; +} +static DEVICE_ATTR_RO(uuid); + static ssize_t modalias_show(struct device *dev, struct device_attribute *a, char *buf) { @@ -129,6 +154,8 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a, static DEVICE_ATTR_RO(modalias); static struct attribute *mei_cl_dev_attrs[] = { + &dev_attr_name.attr, + &dev_attr_uuid.attr, &dev_attr_modalias.attr, NULL, }; @@ -139,6 +166,12 @@ static int mei_cl_uevent(struct device *dev, struct kobj_uevent_env *env) struct mei_cl_device *device = to_mei_cl_device(dev); const uuid_le *uuid = mei_me_cl_uuid(device->me_cl); + if (add_uevent_var(env, "MEI_CL_UUID=%pUl", uuid)) + return -ENOMEM; + + if (add_uevent_var(env, "MEI_CL_NAME=%s", device->name)) + return -ENOMEM; + if (add_uevent_var(env, "MODALIAS=mei:%s:" MEI_CL_UUID_FMT ":", device->name, MEI_CL_UUID_ARGS(uuid->b))) return -ENOMEM; |