HelenOS sources

read_packets      399 uspace/srv/hid/isdv4_tablet/isdv4.c 	errno_t rc = read_packets(state, parse_response_stylus);
read_packets      406 uspace/srv/hid/isdv4_tablet/isdv4.c 	rc = read_packets(state, parse_response_touch);
read_packets      418 uspace/srv/hid/isdv4_tablet/isdv4.c 	return read_packets(state, parse_event);
HelenOS homepage, sources at GitHub