linux/drivers/usb/class, branch v3.18

USB: cdc-acm: add quirk for control-line state requests

2014-11-06T20:25:40Z

Add new quirk for devices that cannot handle control-line state requests. Note that we currently send these requests to all devices, regardless of whether they claim to support it, but that errors are only logged if support is claimed. Since commit 0943d8ead30e ("USB: cdc-acm: use tty-port dtr_rts"), which only changed the timings for these requests slightly, this has been reported to cause occasional firmware crashes on Simtec Electronics Entropy Key devices after re-enumeration. Enable the quirk for this device. Reported-by: Nix Tested-by: Nix Cc: stable # v3.16 Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: only raise DTR on transitions from B0

2014-11-05T19:25:25Z

Make sure to only raise DTR on transitions from B0 in set_termios. Also allow set_termios to be called from open with a termios_old of NULL. Note that DTR will not be raised prematurely in this case. Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

cdc-acm: ensure that termios get set when the port is activated

2014-11-03T23:26:15Z

The driver wasn't properly configuring the hardware for the current termios settings under all conditions. Ensure that termios are written to the device when the port is activated. Signed-off-by: Jim Paris Reviewed-by: Johan Hovold Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: add device id for GW Instek AFG-2225

2014-11-03T23:26:15Z

Add device-id entry for GW Instek AFG-2225, which has a byte swapped bInterfaceSubClass (0x20). Reported-by: Karl Palsson Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

usb: class: usbtmc.c: Cleaning up uninitialized variables

2014-07-09T22:59:10Z

There is a risk that the variable will be used without being initialized. This was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist Signed-off-by: Greg Kroah-Hartman

USB: usbtmc: fix DMA on stack

2014-05-27T23:03:57Z

send_request_dev_dep_msg_in() use a buffer allocated on the stack. Fix by kmalloc()ing the buffer. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: use BIT macro

2014-05-27T23:03:57Z

Converting the header to BIT for readability. No functional change. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: use tty-port dtr_rts

2014-05-27T22:04:10Z

Add dtr_rts tty-port operation which implements proper DTR/RTS handling (e.g. only lower DTR/RTS during shutdown if HUPCL is set). Note that modem-control locking still needs to be added throughout the driver. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: remove redundant usb_mark_last_busy

2014-05-27T22:04:10Z

There's no need to call usb_mark_last_busy after having increased the PM counter in write(). The device will be marked busy by USB core when the PM counter is balanced in the completion handler. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: cdc-acm: do not update PM busy on read errors

2014-05-27T22:04:10Z

There's no need to update the runtime PM last_busy field on read urb errors (e.g. when the urb is being killed on shutdown). Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman