async_req_5_3 264 uspace/lib/c/include/async.h extern errno_t async_req_5_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t, async_req_5_3 264 uspace/lib/posix/include/libc/async.h extern errno_t async_req_5_3(async_exch_t *, sysarg_t, sysarg_t, sysarg_t,HelenOS homepage, sources at GitHub