SystemBase Eddy DK, Programmer'S Manual

Page: 115 / 147

Eddy DK Programmer Guide
115
GETGPIOVAL_LM
Function Reads Read/Write status value for Port A, B, C
Format void ioctl(int fd, GETGPIOVAL_LM, int *mode[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that will store the “value”
value of Port A, B, C
Returns None
Notice
SETGPIOPUL_LM
Function Sets pullup value when Port A, B, C are all in input mode.
Format void ioctl(int fd, SETGPIOVAL_LM, int *value[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that stores the “pullup” value
of Port A, B, C.
Bit value 0 means Pulldown, 1 means Pullup.
Returns None
Notice Any value is ok for bits that are not set to be used GPIO
GETGPIOPUL_LM
Function Reads Read/Write status value for Port A, B, C
Format void ioctl(int fd, GETGPIOVAL_LM, int *mode[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that will store the “pullup”
value of Port A, B, C
Returns None
Notice