linux.git/drivers/usb/core/config.c, branch v2.6.26

USB: ehci tolerates some buggy devices

2008-04-25T04:16:35+00:00

This teaches EHCI how to to work around bugs in certain high speed
devices, by accomodating "bulk" packets that exceed the 512 byte
constant value required by the USB 2.0 specification.  (Have a
look at section 5.8.3, paragraphs 1 and 3.)

It also makes the descriptor parsing code warn when it encounters
such bugs.  (We've had reports of maybe two or three such devices,
all pretty recent.)

Such devices are nonconformant.  The proper fix is have the vendors
of those devices do the simple, obvious, and correct thing ... which
will let them be used with USB hosts that don't have workarounds for
this particular vendor bug.  But unless/until they do, we can at least
have one of the high speed HCDs work with such buggy devices.

Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: fix codingstyle issues in drivers/usb/core/*.c

2008-02-01T22:35:08+00:00

Fixes a number of coding style issues in the remaining .c files in
drivers/usb/core/

Signed-off-by: Greg Kroah-Hartman

usb: usb_get_configuration() obeys authorization

2007-10-12T21:55:06+00:00

If called and the device is not authorized to be used, then we don't
allow reading the configurations.

Signed-off-by: Inaky Perez-Gonzalez 
Signed-off-by: Greg Kroah-Hartman

USB: add IAD support to usbfs and sysfs

2007-07-12T23:34:40+00:00

USB_IAD: Adds support for USB Interface Association Descriptors.

This patch adds support to the USB host stack for parsing, storing, and
displaying Interface Association Descriptors. In /proc/bus/usb/devices
lines starting with A: show the fields in an IAD. In sysfs if an
interface on a USB device is referenced by an IAD the following files
will be added to the sysfs directory for that interface:
iad_bFirstInterface, iad_bInterfaceCount, iad_bFunctionClass, and
iad_bFunctionSubClass, iad_bFunctionProtocol

Signed-off-by: Craig W. Nadler 
Signed-off-by: Greg Kroah-Hartman

USB: Fix up full-speed bInterval values in high-speed interrupt descriptor

2007-07-12T23:34:37+00:00

Many device manufacturers are using full-speed bInterval values in high-speed
interrupt endpoint descriptors. If the bInterval value is greater than 16,
assume the device uses full-speed descriptors and fix the value accordingly.

Signed-off-by: Laurent Pinchart 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: Handle bogus low-speed Bulk endpoints

2007-07-12T23:34:31+00:00

A noticeable number of low-speed devices mistakenly include
descriptors for Bulk endpoints, which is forbidden by the USB spec.
In an attempt to make such devices more usable, this patch (as924)
converts the descriptors to Interrupt with an interval of 1 ms.

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

USB: Fix up bogus bInterval values in endpoint descriptors

2007-06-08T23:24:31+00:00

This patch (as904) adds code to check for endpoint descriptor bInterval
values outside the legal limits.  Illegal values are set to 32 ms, which
seems like a reasonable default.

This fixes Bugzilla #8432.

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

USB: don't try to kzalloc 0 bytes

2007-05-23T06:45:50+00:00

This patch (as907) prevents us from trying to allocate 0 bytes
when an interface has no endpoint descriptors.

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

usb: deal with broken config descriptors

2006-09-27T18:58:55+00:00

Change usb_get_configuration() so that it is more tolerant to devices
with bad configuration descriptors (it'll make it ignore
configurations that fail to load).

Signed-off-by: Inaky Perez-Gonzalez 
Signed-off-by: Greg Kroah-Hartman

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk