BMC/Intel-BMC/linux.git/drivers/usb/class/usbtmc.c, branch dev-4.6

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

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

Implement an ioctl to support the USMTMC-USB488 READ_STATUS_BYTE operation.

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

Background: When performing a read on an instrument that is executing a function that runs longer than the USB timeout the instrument may hang and require a device reset to recover. The READ_STATUS_BYTE operation always returns even when the instrument is busy permitting to poll for the appropriate condition. This capability is referred to in instrument application notes on synchronizing acquisitions for other platforms. Signed-off-by: Dave Penkler Signed-off-by: Greg Kroah-Hartman

USB: usbtmc: add device quirk for Rigol DS6104

2015-06-02T02:49:45+00:00

Recently we purchased the Rigol DS6104 and when I try to operate it from my Linux pc, everything works well with the default usbtmc driver, except when I want to download a big datachunk like a screenshot. This bitmapfile has a size of 1152054 bytes but I receive a smaller file and no new packets can be read. When I took a look at the driver source, I found this "Rigol quirk" and I added the id of the new DS series oscilloscopes to this list. I compiled it and loaded the new driver and now everything seems to work fine. Signed-off-by: Teunis van Beelen Signed-off-by: Greg Kroah-Hartman

usb: class: usbtmc: delete unnecessary 'out of memory' messages

2014-11-03T23:42:04+00:00

The memory subsystem has already had similar message for it. Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman

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

2014-07-09T22:59:10+00:00

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

2014-05-27T23:03:57+00:00

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