linux-stable.git/drivers/usb/class, branch v4.7.3

cdc-acm: fix wrong pipe type on rx interrupt xfers

2016-09-07T06:34:52+00:00

commit add125054b8727103631dce116361668436ef6a7 upstream.

This fixes the "BOGUS urb xfer" warning logged by usb_submit_urb().

Signed-off-by: Gavin Li 
Acked-by: Oliver Neukum 
Signed-off-by: Greg Kroah-Hartman

tty: Replace ASYNC_INITIALIZED bit and update atomically

2016-04-30T16:26:55+00:00

Replace ASYNC_INITIALIZED bit in the tty_port::flags field with
TTY_PORT_INITIALIZED bit in the tty_port::iflags field. Introduce helpers
tty_port_set_initialized() and tty_port_initialized() to abstract
atomic bit ops.

Note: the transforms for test_and_set_bit() and test_and_clear_bit()
are unnecessary as the state transitions are already mutually exclusive;
the tty lock prevents concurrent open/close/hangup.

Signed-off-by: Peter Hurley 
Signed-off-by: Greg Kroah-Hartman

cdc-acm: fix crash if flushed with nothing buffered

2016-04-13T18:53:07+00:00

Under some circumstances acm_tty_flush_chars() is called
with no buffer to flush. We simply need to do nothing.

Signed-off-by: Oliver Neukum 
Reported-by: Torsten Hilbrich 
Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: more sanity checking

2016-03-18T16:19:02+00:00

An attack has become available which pretends to be a quirky
device circumventing normal sanity checks and crashes the kernel
by an insufficient number of interfaces. This patch adds a check
to the code path for quirky devices.

Signed-off-by: Oliver Neukum 
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

usb: usbtmc: Fix disconnect/poll interaction

2016-02-21T04:21:53+00:00

When the device is disconnected poll waiters were not being woken.

Changes for v2:
  - add commit summary
  - add Fixes and Reported-by tags

Fixes: eb6b92ecc0f9 ("Add support for receiving USBTMC USB488 SRQ notifications via poll/select")
Reported-by: Oliver Neukum 
Signed-off-by: Dave Penkler 
Signed-off-by: Greg Kroah-Hartman

cdc-acm: implement put_char() and flush_chars()

2016-02-15T01:06:43+00:00

This should cut down latencies and waste if the tty layer writes single bytes.

Signed-off-by: Oliver Neukum >oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman

Add ioctls to enable and disable local controls on an instrument

2016-02-03T21:54:06+00:00

These ioctls provide support for the USBTMC-USB488 control requests
for REN_CONTROL, GO_TO_LOCAL and LOCAL_LOCKOUT

Signed-off-by: Dave Penkler 
Signed-off-by: Greg Kroah-Hartman

Add ioctl to retrieve USBTMC-USB488 capabilities

2016-02-03T21:54:06+00:00

This is a convenience function to obtain an instrument's
capabilities from its file descriptor without having to access sysfs
from the user program.

Signed-off-by: Dave Penkler 
Signed-off-by: Greg Kroah-Hartman

Add support for receiving USBTMC USB488 SRQ notifications via poll/select

2016-02-03T21:54:06+00:00

Background:
In many situations operations on multiple instruments need to be
synchronized. poll/select provide a convenient way of waiting on a
number of different instruments and other peripherals
simultaneously.

Signed-off-by: Dave Penkler 
Signed-off-by: Greg Kroah-Hartman

Add support for USBTMC USB488 SRQ notification with fasync

2016-02-03T21:54:06+00:00

Background:
By configuring an instrument's event status register various
conditions can be reported via an SRQ notification. This complements
the synchronous polling approach using the READ_STATUS_BYTE ioctl
with an asynchronous notification.

Signed-off-by: Dave Penkler 
Signed-off-by: Greg Kroah-Hartman