@ -252,7 +252,6 @@ bool PX4GPIO::attach_interrupt(uint8_t interrupt_num, AP_HAL::Proc p, uint8_t mo
*/
bool PX4GPIO::usb_connected(void)
{
struct stat st;
/*
we use a combination of voltage on the USB connector and the
open of the /dev/ttyACM0 character device. This copes with