HelenOS sources

gc_conn            79 uspace/drv/fb/amdm37x_dispc/main.c 		gc_conn(icall, gc);
gc_conn           425 uspace/drv/fb/kfb/port.c 		gc_conn(icall, gc);
gc_conn           299 uspace/lib/ddev/test/ddev.c 		gc_conn(icall, gc);
gc_conn          2135 uspace/lib/display/test/display.c 		gc_conn(icall, gc);
gc_conn            43 uspace/lib/ipcgfx/include/ipcgfx/server.h extern errno_t gc_conn(ipc_call_t *icall, gfx_context_t *gc);
gc_conn          1081 uspace/lib/ipcgfx/test/ipcgfx.c 	gc_conn(icall, gc);
gc_conn           290 uspace/srv/hid/display/main.c 	gc_conn(icall, gc);
gc_conn           438 uspace/srv/hid/rfb/main.c 		gc_conn(icall, gc);
HelenOS homepage, sources at GitHub