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Driver-Core: extend devnode callbacks to provide permissions

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This allows subsytems to provide devtmpfs with non-default permissions
for the device node. Instead of the default mode of 0600, null, zero,
random, urandom, full, tty, ptmx now have a mode of 0666, which allows
non-privileged processes to access standard device nodes in case no
other userspace process applies the expected permissions.

This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers
2009-09-18 23:01:12 +02:00
committed by Live-CD User
parent 78f28b7c55
commit e454cea20b
30 changed files with 116 additions and 79 deletions
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4
include/linux/usb.h
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@@ -922,7 +922,7 @@ extern struct bus_type usb_bus_type;
/**
* struct usb_class_driver - identifies a USB driver that wants to use the USB major number
* @name: the usb class device name for this driver. Will show up in sysfs.
* @nodename: Callback to provide a naming hint for a possible
* @devnode: Callback to provide a naming hint for a possible
* device node to create.
* @fops: pointer to the struct file_operations of this driver.
* @minor_base: the start of the minor range for this driver.
@@ -933,7 +933,7 @@ extern struct bus_type usb_bus_type;
*/
struct usb_class_driver {
char *name;
char *(*nodename)(struct device *dev);
char *(*devnode)(struct device *dev, mode_t *mode);
const struct file_operations *fops;
int minor_base;
};