linux.git/drivers/usb/core/file.c, branch v2.6.31

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

2009-06-16T04:30:25+00:00

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 
Signed-off-by: Jan Blunck 
Signed-off-by: Greg Kroah-Hartman

USB: remove err() macro from usb core code

2008-10-17T21:41:11+00:00

USB should not be having it's own printk macros, so remove err() and
use the system-wide standard of dev_err() wherever possible.  In the
few places that will not work out, use a basic printk().

Signed-off-by: Greg Kroah-Hartman

device create: usb: convert device_create_drvdata to device_create

2008-10-16T16:24:45+00:00

Now that device_create() has been audited, rename things back to the
original call to be sane.

Signed-off-by: Greg Kroah-Hartman

device create: usb: convert device_create to device_create_drvdata

2008-07-22T04:54:46+00:00

device_create() is race-prone, so use the race-free
device_create_drvdata() instead as device_create() is going away.

Signed-off-by: Greg Kroah-Hartman

USB: usb dev_name() instead of dev->bus_id

2008-07-21T22:15:46+00:00

The bus_id field is going away, use the dev_name() function instead.

Signed-off-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

usbcore: cdev lock_kernel() pushdown

2008-06-20T20:05:49+00:00

usb_open() is protected by a down_read(&minor_rwsem), but I'm not sure I
trust it to protect everything including subsidiary open() functions.

Signed-off-by: Jonathan Corbet

USB: mark USB drivers as being GPL only

2008-02-01T22:35:07+00:00

Over two years ago, the Linux USB developers stated that they believed
there was no way to create a USB kernel driver that was not under the
GPL.  This patch moves the USB apis to enforce that decision.

There are no known closed source USB drivers in the wild, so this patch
should cause no problems.

Signed-off-by: Greg Kroah-Hartman

USB: prevent char device open/deregister race

2007-07-12T23:29:48+00:00

This patch (as908) adds central protection in usbcore for the
prototypical race between opening and unregistering a char device.
The spinlock used to protect the minor-numbers array is replaced with
an rwsem, which can remain locked across a call to a driver's open()
method.  This guarantees that open() and deregister() will be mutually
exclusive.

The private locks currently used in several individual drivers for
this purpose are no longer necessary, and the patch removes them.  The
following USB drivers are affected: usblcd, idmouse, auerswald,
legousbtower, sisusbvga/sisusb, ldusb, adutux, iowarrior, and
usb-skeleton.

As a side effect of this change, usb_deregister_dev() must not be
called while holding a lock that is acquired by open().  Unfortunately
a number of drivers do this, but luckily the solution is simple: call
usb_deregister_dev() before acquiring the lock.

In addition to these changes (and their consequent code
simplifications), the patch fixes a use-after-free bug in adutux and a
race between open() and release() in iowarrior.

Signed-off-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: convert usb class devices to real devices

2007-02-07T23:44:31+00:00

Signed-off-by: Greg Kroah-Hartman

fix file specification in comments

2006-10-03T21:01:26+00:00

Many files include the filename at the beginning, serveral used a wrong one.

Signed-off-by: Uwe Zeisberger 
Signed-off-by: Adrian Bunk