Solvline Eddy DKV2.1.0.3 - Manual (Page 94)

Chapter 6. Library
Introduction
94
enable: 0
 disable (Do not use as GPIO), 1  Enable (use as GPIO)
mode: 0  Set as input mode,, 1  Set as output mode
value: 0  Read/Write status is set to Low, 1  Read/Write status is set to High
pullup: 0  pulldown, 1  pullup
SETGPIOINIT
Function Initializes ports that will be used as GPIO after boot.
Format void ioctl(int fd, SETGPIOINIT, struct *gpio_struct);
Parameter fd Handle to GPIO device(‚/dev/eddy_gpio‛)
gpio_struct Pointer to the struct which stores GPIO table value in
/etc/eddy_gpio.cfg with GPIO configuration file
registered in Web configuration.
struct gpio_struct {
unsigned int value[3];
unsigned int mode[3];
unsigned int pullup[3];
unsigned int enable[3]; };
Returns None
Notice Eddy-CPU provides maximum GPIO ports of 56.
Eddy-S4M provides maximum GPIO ports of 34.
That is when using only WAN and when devices such as serial ports,
ADC, Rese, RDY LED… are used, number of available GPIO ports
decreases.
This command initializes available GPIO ports leaving the devices that
are registered in configuration in Pinetd.c after boot so users don’t
have use this command. When used, users need to be careful.
For instance, if a serial port is enabled through web configuration and
Eddy is rebooted, the port acts as a serial port, not a GPIO port. But
when this port is forced to be used as GPIO port with this command, the
application that uses this serial port will not operate properly.
SETGPIOMOD_LM
Function Sets Read/Write direction for all Port A, B, C
Format void ioctl(int fd, SETGPIOMOD_LM, int *mode[3]);