HelenOS sources

msim_con_read      45 uspace/drv/char/msim-con/msim-con.c static errno_t msim_con_read(chardev_srv_t *, void *, size_t, size_t *,
msim_con_read      50 uspace/drv/char/msim-con/msim-con.c 	.read = msim_con_read,
HelenOS homepage, sources at GitHub