User Manual

UG_1x22_053 73M1822/73M1922 Control Module User Guide
Rev. 1.0 33
6.2.5 M1X22_EVENT_GET
Description
Returns an event from the FIFO queue. The driver records various events in its internal FIFO queue.
Access to this event on this queue by user application is accomplished using this command, and the
event will be removed permanently from the queue.
#define M1X22_EVENT_GET _IOWR(0xA4,0xB1,unsigned int)
Prototype
int ioctl (
int dev_fd,
int M1X22_EVENT_GET,
unsigned long param );
Parameters
Data Type Name Description
int
dev_fd
Device descriptor.
int
M1X22_EVENT_GET
I/O control identifier for this operation.
unsigned long param
Pointer to structure M1X22_MDM_EVENT_t (see
Section 5.1).
Return Values
Data Type Description
int
0 – Successful.
-EFAULT Failed to retrieve event data.