linux-stable.git/include/linux/usb, branch linux-2.6.31.y

USB: serial: don't call release without attach

2009-10-22T22:11:49+00:00

commit a4720c650b68a5fe7faed2edeb0ad12645f7ae63 upstream.

This patch (as1295) fixes a recently-added bug in the USB serial core.
If certain kinds of errors occur during probing, the core may call a
serial driver's release method without previously calling the attach
method.  This causes some drivers (io_ti in particular) to perform an
invalid memory access.

The patch adds a new flag to keep track of whether or not attach has
been called.

Signed-off-by: Alan Stern 
Tested-by: Jean-Denis Girard 
Signed-off-by: Greg Kroah-Hartman

smsc95xx: fix transmission where ZLP is expected

2009-10-12T19:40:28+00:00

[ Upstream commit ec4756238239f1a331d9fb95bad8b281dad56855 ]

Usbnet framework assumes USB hardware doesn't handle zero length
packets, but SMSC LAN95xx requires these to be sent for correct
operation.

This patch fixes an easily reproducible tx lockup when sending a frame
that results in exactly 512 bytes in a USB transmission (e.g. a UDP
frame with 458 data bytes, due to IP headers and our USB headers).  It
adds an extra flag to usbnet for the hardware driver to indicate that
it can handle and requires the zero length packets.

This patch should not affect other usbnet users, please also consider
for -stable.

Signed-off-by: Steve Glendinning 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

tty: USB serial termios bits

2009-10-05T16:32:37+00:00

commit fe1ae7fdd2ee603f2d95f04e09a68f7f79045127 upstream.

Various drivers have hacks to mangle termios structures. This stems from
the fact there is no nice setup hook for configuring the termios settings
when the port is created

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

Revert "USB: Add Intel Langwell USB OTG Transceiver Drive"

2009-07-12T22:16:36+00:00

This reverts commit 453f77558810ffa669ed5a510a7173ec49def396.

The driver should not have been accepted as the MSRT code is not
in the main kernel yet, which this depends on.

Cc: Alan Cox 
Cc: Hao Wu 
Signed-off-by: Greg Kroah-Hartman

tty: Fix USB kref leak

2009-07-11T02:17:22+00:00

The sysrq code acquired a kref leak. Fix it by passing the tty separately
from the caller (thus effectively using the callers kref which all the
callers hold anyway)

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

usbnet: Remove private stats structure

2009-07-01T02:46:49+00:00

Now that nothing uses the private stats structure we can remove it.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

USB: Change names of SuperSpeed ep companion descriptor structs.

2009-06-16T04:44:50+00:00

Differentiate between SuperSpeed endpoint companion descriptor and the
wireless USB endpoint companion descriptor.  Make all structure names for
this descriptor have "ss" (SuperSpeed) in them.  David Vrabel asked for
this change in http://marc.info/?l=linux-usb&m=124091465109367&w=2

Reported-by: David Vrabel 
Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

USB: Parse and store the SuperSpeed endpoint companion descriptors.

2009-06-16T04:44:49+00:00

The USB 3.0 bus specification added an "Endpoint Companion" descriptor that is
supposed to follow all SuperSpeed Endpoint descriptors.  This descriptor is used
to extend the bus protocol to allow more packets to be sent to an endpoint per
"microframe".  The word microframe was removed from the USB 3.0 specification
because the host controller does not send Start Of Frame (SOF) symbols down the
USB 3.0 wires.

The descriptor defines a bMaxBurst field, which indicates the number of packets
of wMaxPacketSize that a SuperSpeed device can send or recieve in a service
interval.  All non-control endpoints may set this value as high as 16 packets
(bMaxBurst = 15).

The descriptor also allows isochronous endpoints to further specify that they
can send and receive multiple bursts per service interval.  The bmAttributes
allows them to specify a "Mult" of up to 3 (bmAttributes = 2).

Bulk endpoints use bmAttributes to report the number of "Streams" they support.
This was an extension of the endpoint pipe concept to allow multiple mass
storage device commands to be outstanding for one bulk endpoint at a time.  This
should allow USB 3.0 mass storage devices to support SCSI command queueing.
Bulk endpoints can say they support up to 2^16 (65,536) streams.

The information in the endpoint companion descriptor must be stored with the
other device, config, interface, and endpoint descriptors because the host
controller needs to access them quickly, and we need to install some default
values if a SuperSpeed device doesn't provide an endpoint companion descriptor.

Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

USB: Add SuperSpeed to the list of USB device speeds.

2009-06-16T04:44:48+00:00

Modify the USB core to handle the new USB 3.0 speed, "SuperSpeed".  This
is 5.0 Gbps (wire speed).  There are probably more places that check for
speed that I've missed.

SuperSpeed devices have a 512 byte endpoint 0 max packet size.  This shows
up as a bMaxPacketSize0 set to 0x09 (see table 9-8 of the USB 3.0 bus
spec).

xHCI spec says that the xHC can handle intervals up to 2^15 microframes.  That
might change when real silicon becomes available.

Add FIXME note for SuperSpeed isochronous endpoints.  They can transmit up
to 16 packets in one "burst" before they wait for an acknowledgment of the
packets.  They can do up to 3 bursts per microframe (determined by the
mult value in the endpoint companion descriptor).  The xHCI driver doesn't
have support for isoc yet, so fix this later.

Signed-off-by: Sarah Sharp 
Signed-off-by: Greg Kroah-Hartman

USB: Add Intel Langwell USB OTG Transceiver Drive

2009-06-16T04:44:47+00:00

Description:
This driver is used for Intel Langwell* USB OTG controller in Intel
Moorestown* platform. It tries to implement host/device role switch
according to OTG spec.  The actual hsot and device functions are
accomplished in modified EHCI driver and Intel Langwell USB OTG client
controller driver.

* Langwell and Moorestown are names used in development. They are not
  approved official name.

Note:
This patch is the first version Intel Langwell USB OTG Transceiver
driver. The development is not finished, and the bug fixing is on going
for some hardware and software issues. The main purpose of this
submission is for code view.

Supported features:
- Data-line Pulsing SRP
- Support HNP to switch roles
- PCI D0/D3 power management support

Known issues:
- HNP is only tested with another Moorestown platform.
- PCI D0/D3 power management support is not fully tested.
- VBus Pulsing SRP is not support in current version.

Signed-off-by: Hao Wu 
Signed-off-by: Greg Kroah-Hartman