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Driver Core: usb: add nodename support for usb drivers.

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This adds support for USB drivers to report their requested nodename to
userspace.  It also updates a number of USB drivers to provide the
needed subdirectory and device name to be used for them.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers
2009-04-30 15:23:42 +02:00
committed by Greg Kroah-Hartman
parent d405640539
commit f7a386c5b8
8 changed files with 56 additions and 2 deletions
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6
drivers/usb/misc/legousbtower.c
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@@ -266,12 +266,18 @@ static const struct file_operations tower_fops = {
.llseek = tower_llseek,
};
static char *legousbtower_nodename(struct device *dev)
{
return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
}
/*
* usb class driver info in order to get a minor number from the usb core,
* and to have the device registered with the driver core
*/
static struct usb_class_driver tower_class = {
.name = "legousbtower%d",
.nodename = legousbtower_nodename,
.fops = &tower_fops,
.minor_base = LEGO_USB_TOWER_MINOR_BASE,
};