HelenOS sources

ddf_fun_quiesce   270 uspace/lib/drv/generic/driver.c 				ddf_fun_quiesce(fun);
ddf_fun_quiesce   134 uspace/lib/drv/include/ddf/driver.h extern errno_t ddf_fun_quiesce(ddf_fun_t *);
HelenOS homepage, sources at GitHub