SystemBase Eddy DK, Руководство программиста

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Eddy DK Programmer Guide
116
SETGPIOMOD_LA
SETGPIOMOD_LB
SETGPIOMOD_LC
Function Sets Read/Write direction for one of Port A, B, C
Format void ioctl(int fd, SETGPIOMOD_L?, int *mode[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that stores “mode” value.
Bit value 0 means input, 1 means output.
Returns None
Notice Any value is ok for bits that are not set to be used GPIO
GETGPIOMOD_LA
GETGPIOMOD_LB
GETGPIOMOD_LC
Function Reads Read/Write direction for one of Port A, B, C
Format void ioctl(int fd, GETGPIOMOD_L?, int *mode[3]);
Parameter fd Handle to GPIO device(“/dev/eddy_gpio”)
mode Pointer to the buffer that will store the “mode”
value.
Returns None
Notice
SETGPIOVAL_LA
SETGPIOVAL_LB
SETGPIOVAL_LC
Function Sets output value when Port is in output 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 “value” value.
Bit value 0 means Low, 1 means High.
Returns None
Notice Any value is ok for bits that are not set to be used GPIO