User's Manual and Documentation

port_usb_poweron - Power on an USB input port

void port_usb_poweron(uint8 port);

Switch on the power of the USB input port identified by the argument.

• port: An valid USB input port identifier, accordingly table 1.

No value is returned.

#include <keyboard.gph>
 
bool power_status;
 
main {
    // F5 switches OFF the power of INPUT-B
    if(key_status(KEY_F5) && power_status) {
        port_usb_poweroff(PORT_USB_B);
        power_status = 0;
    }
    // and F6 switches ON the power of INPUT-B
    else if(key_status(KEY_F6) && !power_status) {
        port_usb_poweron(PORT_USB_B);
        power_status = 1;
    }
}

• port_turnoff
• port_usb_poweroff