SystemBase Eddy DK, Руководство программиста

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Eddy DK Programmer Guide
117
GETGPIOVAL_LA
GETGPIOVAL_LB
GETGPIOVAL_LC
Function Reads Read/Write status value for one of Port A, B, C
Format void ioctl(int fd, GETGPIOVAL_L?, int *mode[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that will store the “value”
value.
Returns None
Notice
SETGPIOPUL_LA
SETGPIOPUL_LB
SETGPIOPUL_LC
Function Sets pullup value when Port is in input mode.
Format void ioctl(int fd, SETGPIOVAL_L?, int *value[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that stores the “pullup” value.
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_LA
GETGPIOPUL_LB
GETGPIOPUL_LC
Function Reads Read/Write status value for one of Port A, B, C
Format void ioctl(int fd, GETGPIOVAL_L?, int *mode[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that will store the “pullup”
value.
Returns None
Notice