linux-toradex.git/drivers/usb/class, branch v2.6.31.12

USB: usbtmc: repeat usb_bulk_msg until whole message is transfered

2009-12-18T21:43:36+00:00

commit ec412b92dbe3ea839716853eea058d1bcc5e6ca4 upstream.

usb_bulk_msg() transfers only bytes up to the maximum packet size.
It must be repeated by the usbtmc driver until all bytes of a TMC message
are transfered.

Without this patch, ETIMEDOUT is reported when writing TMC messages
larger than the maximum USB bulk size and the transfer remains incomplete.
The user will notice that the device hangs and must be reset by either closing
the application or pulling the plug.

Signed-off-by: Andre Herms 
Signed-off-by: Greg Kroah-Hartman

USB: cdc_acm: Fix race condition when opening tty

2009-12-08T18:21:28+00:00

commit 18a77b5d237a67d2c621a46f5271a3b51da1b380 upstream.

If acm_rx_tasklet() gets called before tty_port_block_til_ready()
returns, then bulk IN urbs may not be sent. This fixes it.

Signed-off-by: Henry Gebhardt 
Acked-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

USB: usbtmc: sanity checks for DEV_DEP_MSG_IN urbs

2009-10-05T16:32:02+00:00

commit 665d7662d15441b4b3e54131a9418a1a198d0d31 upstream.

According to the specifications, an instrument should not return more data in a
DEV_DEP_MSG_IN urb than requested.  However, some instruments can send more
than requested. This could cause the kernel to write the extra data past the
end of the buffer provided by read().

Fix this by checking that the value of the TranserSize field is not larger than
the urb itself and not larger than the size of the userspace buffer. Also
correctly decrement the remaining size of the buffer when userspace read()s
more than USBTMC_SIZE_IOBUFFER.

Signed-off-by: Guus Sliepen 
Signed-off-by: Greg Kroah-Hartman

cdc_acm: Fix to use modern speed interfaces

2009-10-05T16:31:56+00:00

commit 9b80fee149a875a6292b2556ab2c64dc7ab7d6f5 upstream.

This changed in 2006 so its about time the ACM driver caught up

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

USB: fix cdc-acm regression in open

2009-10-05T16:31:55+00:00

commit 7af25b4b34a2439020d78da765a3bed0ff73f25c upstream.

cdc-acm needs to set a flag during open to tell the
tty layer that the device is initialized

Signed-off-by: Oliver Neukum 
Cc: Marcel Holtmann 
Cc: Paul Martin 
Signed-off-by: Greg Kroah-Hartman

USB: CDC WDM driver doesn't support non-blocking reads

2009-10-05T16:31:54+00:00

commit 7f1dc313d01f5f0f84c06051343a3b8623932d3c upstream.

support for O_NONBLOCK in read and write path
by simply not waiting for data in read or availability
of the write urb in write but returning -EAGAIN

Signed-off-by: Oliver Neukum 
Tested-by: Marcel Holtmann 
Signed-off-by: Greg Kroah-Hartman

USB: fix oops on disconnect in cdc-acm

2009-08-07T23:05:14+00:00

This patch fixes an oops caused when during an unplug a device's table
of endpoints is zeroed before the driver is notified. A pointer to
the endpoint must be cached.

this fixes a regression caused by commit
5186ffee2320942c3dc9745f7930e0eb15329ca6
Therefore it should go into 2.6.31

Signed-off-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

tty: fix chars_in_buffers

2009-07-20T23:38:43+00:00

This function does not have an error return and returning an error is
instead interpreted as having a lot of pending bytes.

Reported by Jeff Harris who provided a list of some of the remaining
offenders.

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

Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

2009-07-13T17:23:03+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (48 commits)
  USB: otg: fix module reinsert issue
  USB: handle zero-length usbfs submissions correctly
  USB: EHCI: report actual_length for iso transfers
  USB: option: remove unnecessary and erroneous code
  USB: cypress_m8: remove invalid Clear-Halt
  USB: musb_host: undo incorrect change in musb_advance_schedule()
  USB: fix LANGID=0 regression
  USB: serial: sierra driver id_table additions
  USB serial: Add ID for Turtelizer, an FT2232L-based JTAG/RS-232 adapter.
  USB: fix race leading to a write after kfree in usbfs
  USB: Sierra: fix oops upon device close
  USB: option.c: add A-Link 3GU device id
  USB: Serial: Add support for Arkham Technology adapters
  USB: Fix option_ms regression in 2.6.31-rc2
  USB: gadget audio: select SND_PCM
  USB: ftdi: support NDI devices
  Revert USB: usbfs: deprecate and hide option for !embedded
  USB: usb.h: fix kernel-doc notation
  USB: RNDIS gadget, fix issues talking from PXA
  USB: serial: FTDI with product code FB80 and vendor id 0403
  ...

USB: cdc-acm: work around some broken devices

2009-07-12T22:16:37+00:00

This patch introduces a work around for cdc-acm devices which are
low speed contrary to the specification, which requires bulk endpoints
which are banned in low speed and converted by usbcore to virtual
interrupt endpoints if they are used nevertheless.

Signed-off-by: Arseniy Lartsev 
Cc: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman