[PATCH v3 0/5] usb: usbtmc: Add support for missing functions in USBTMC-USB488 spec

From: Dave Penkler
Date: Wed Nov 11 2015 - 06:08:46 EST

Implement support for the USB488 defined READ_STATUS_BYTE ioctl (1/5)
and SRQ notifications with fasync (2/5) and poll/select (3/5) in order
to be able to synchronize with variable duration instrument operations.

Add ioctls for other USB488 requests: REN_CONTROL, GOTO_LOCAL and

Add convenience ioctl to return all device capabilities (5/5)

PATCH Changelog:

v3 - Split into multiple patches as per gregkh request

V2 - Fix V1 bug: not waking sleepers on disconnect.
- Correct sparse warnings.

V1 - Original patch

All functions tested ok on an USBTMC-USB488 compliant oscilloscope

Dave Penkler (5):
Implement an ioctl to support the USMTMC-USB488 READ_STATUS_BYTE
Add support for USBTMC USB488 SRQ notification with fasync
Add support for receiving USBTMC USB488 SRQ notifications via
Add ioctl to retrieve USBTMC-USB488 capabilities
Add ioctls to enable and disable local controls on an instrument

drivers/usb/class/usbtmc.c | 358 +++++++++++++++++++++++++++++++++++++++++++
include/uapi/linux/usb/tmc.h | 30 +++-
2 files changed, 385 insertions(+), 3 deletions(-)

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