| 521 | } |
| 522 | |
| 523 | static int |
| 524 | devioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td) |
| 525 | { |
| 526 | switch (cmd) { |
| 527 | case FIONBIO: |
| 528 | if (*(int*)data) |
| 529 | devsoftc.nonblock = 1; |
| 530 | else |
| 531 | devsoftc.nonblock = 0; |
| 532 | return (0); |
| 533 | case FIOASYNC: |
| 534 | if (*(int*)data) |
| 535 | devsoftc.async = 1; |
| 536 | else |
| 537 | devsoftc.async = 0; |
| 538 | return (0); |
| 539 | case FIOSETOWN: |
| 540 | return fsetown(*(int *)data, &devsoftc.sigio); |
| 541 | case FIOGETOWN: |
| 542 | *(int *)data = fgetown(&devsoftc.sigio); |
| 543 | return (0); |
| 544 | |
| 545 | /* (un)Support for other fcntl() calls. */ |
| 546 | case FIOCLEX: |
| 547 | case FIONCLEX: |
| 548 | case FIONREAD: |
| 549 | default: |
| 550 | break; |
| 551 | } |
| 552 | return (ENOTTY); |
| 553 | } |
| 554 | |
| 555 | static int |
| 556 | devpoll(struct cdev *dev, int events, struct thread *td) |