DEVICE_ATTACH(9)

DEVICE_ATTACH9

Attach a device

Usage

#include <sys/param.h>

#include <sys/bus.h>

int

DEVICE_ATTACH(device_t dev);

Overview

Attach a device to the system after the DEVICE_PROBE() method has been called and has indicated that the device exists. The DEVICE_ATTACH() method should initialize the hardware and allocate other system resources (such as devfs(4) entries).

Devices which implement buses should use this method to probe for the existence of devices attached to the bus and add them as children. If this is combined with the use of bus_attach_children(9) the child devices will be automatically probed and attached.

Return values

Zero is returned on success, otherwise an appropriate error is returned.

Releases

77 releases since FreeBSD 3.0-RELEASE; the text changed 41 times.

  1. 3.0–3.2
  2. 3.3–3.5.1
  3. 4.0–4.3
  4. 4.4
  5. 4.5–4.11
  6. 5.0–5.2.1
  7. 5.3
  8. 5.4–5.5
  9. 6.0–6.3
  10. 6.4
  11. 7.0
  12. 7.1
  13. 7.2
  14. 7.3
  15. 7.4
  16. 8.0
  17. 8.1
  18. 8.2
  19. 8.3
  20. 8.4
  21. 9.0
  22. 9.1
  23. 9.2
  24. 9.3
  25. 10.0
  26. 10.1
  27. 10.2
  28. 10.3
  29. 10.4
  30. 11.0
  31. 11.1
  32. 11.2
  33. 11.3
  34. 11.4
  35. 12.0
  36. 12.1
  37. 12.2
  38. 12.3
  39. 12.4
  40. 13.0–13.2
  41. 13.3–14.5
  42. 15.0–16.0

Authors

This manual page was written by Doug Rabson ⟨[email protected]⟩.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.