diff options
| author | Kay Sievers <kay.sievers@vrfy.org> | 2007-03-12 21:08:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-27 10:57:28 -0700 |
| commit | 414264f959cf46f49f974b3510400e12ac3624a6 (patch) | |
| tree | ead43994761620cbf7cb22525610627786562098 | |
| parent | 621a1672f7377e08a942f205d6742d8af1292aab (diff) | |
Driver core: add name to device_type
If "name" of a device_type is specified, the uevent will
contain the device_type name in the DEVTYPE variable.
This helps userspace to distingiush between different types
of devices, belonging to the same subsystem.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/base/core.c | 5 | ||||
| -rw-r--r-- | include/linux/device.h | 10 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index bb2cc37a4d4..bffb69e4bde 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -157,6 +157,11 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp, "MINOR=%u", MINOR(dev->devt)); } + if (dev->type && dev->type->name) + add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "DEVTYPE=%s", dev->type->name); + if (dev->driver) add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, diff --git a/include/linux/device.h b/include/linux/device.h index 3b64fdecd04..7f63d4de5c4 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -331,7 +331,17 @@ extern struct class_device *class_device_create(struct class *cls, __attribute__((format(printf,5,6))); extern void class_device_destroy(struct class *cls, dev_t devt); +/* + * The type of device, "struct device" is embedded in. A class + * or bus can contain devices of different types + * like "partitions" and "disks", "mouse" and "event". + * This identifies the device type and carries type-specific + * information, equivalent to the kobj_type of a kobject. + * If "name" is specified, the uevent will contain it in + * the DEVTYPE variable. + */ struct device_type { + const char *name; struct attribute_group **groups; int (*uevent)(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); |