TIP675-SW-42 – VxWorks Device Driver
Page 24 of 31
4.3.3 FIO_T675_REMOVE_ISF
NAME
FIO_T675_REMOVE_ISF – Remove user supplied service function
DESCRIPTION
This ioctl function removes a previous installed callback function from the “interrupt” of the specified
I/O line and edge. A structure (
T675_REMOVE_ISF_STR
) specifying I/O line number and the edge
must be passed in the ioctl argument
arg
to the driver.
typedef struct
{
unsigned short
io_line;
unsigned short
edge;
} T675_REMOVE_ISF_STR;
io_line
I/O-line specifying the callback function to be uninstalled. Valid I/O lines are in range from
1 to 48.
edge
Specifies the edge on which the callback function is called that shall be removed. Valid values
are:
Value
Description
T675_POS_EDGE
The interrupt will be generated on a Low to High
transition
T675_NEG_EDGE
The interrupt will be generated on a High to Low
transition
