HelenOS sources

usb_hub_port_process_interrupt   60 uspace/drv/bus/usb/usbhub/port.h void usb_hub_port_process_interrupt(usb_hub_port_t *port);
usb_hub_port_process_interrupt  331 uspace/drv/bus/usb/usbhub/usbhub.c 			usb_hub_port_process_interrupt(&hub->ports[port]);
HelenOS homepage, sources at GitHub