GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 15:27:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

usb: usbtmc: Add ioctl USBTMC488_IOCTL_WAIT_SRQ

Browse source 
Wait until an SRQ (service request) is received on the interrupt pipe
or until the given period of time is expired. In contrast to the
poll() function this ioctl does not return when other (a)synchronous
I/O operations fail with EPOLLERR.

Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Reviewed-by: Steve Bayless <steve_bayless@keysight.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Guido Kiener 2018-09-12 10:50:58 +02:00 • committed by Greg Kroah-Hartman
parent b19bbdc5f4
commit 739240a9f6
2 changed files with 58 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/uapi/linux/usb/tmc.h
View file

@ -96,6 +96,7 @@ struct usbtmc_message {
#define USBTMC488_IOCTL_GOTO_LOCAL _IO(USBTMC_IOC_NR, 20)
#define USBTMC488_IOCTL_LOCAL_LOCKOUT _IO(USBTMC_IOC_NR, 21)
#define USBTMC488_IOCTL_TRIGGER _IO(USBTMC_IOC_NR, 22)
#define USBTMC488_IOCTL_WAIT_SRQ _IOW(USBTMC_IOC_NR, 23, __u32)
/* Cancel and cleanup asynchronous calls */
#define USBTMC_IOCTL_CANCEL_IO _IO(USBTMC_IOC_NR, 35)