Initial code for USB cable detection

[kiibohd-controller.git] / Output / pjrcUSB / avr / usb_keyboard_serial.c

diff --git a/Output/pjrcUSB/avr/usb_keyboard_serial.c b/Output/pjrcUSB/avr/usb_keyboard_serial.c
index 54586801eee45f1927355aac2d9a900b63747212..1403c9ae3ca06d83d7a5f72f26cbdcff11c83fca 100644 (file)
--- a/Output/pjrcUSB/avr/usb_keyboard_serial.c
+++ b/Output/pjrcUSB/avr/usb_keyboard_serial.c
@@ -590,8 +590,13 @@ void wdt_init()
 
 
 // initialize USB
-void usb_init()
+uint8_t usb_init()
 {
+       // Check to see if a usb cable has been plugged in
+       // XXX Not tested (also, not currently needed) -HaaTa
+       //if ( USB0_STAT & (1 << 1)
+       //      return 0;
+
        HW_CONFIG();
        USB_FREEZE();                           // enable USB
        PLL_CONFIG();                           // config PLL
@@ -604,6 +609,8 @@ void usb_init()
 
        // Disable watchdog timer after possible software reset
        //wdt_init(); // XXX Not working...seems to be ok without this, not sure though
+
+       return 1;
 }
 
 // return 0 if the USB is not configured, or the configuration