[A]

1. ABORT
2. ABORTED_COMMAND
3. ABORT_TIMEOUT
4. ABRT_ERR
5. ACC_MODE
6. ACK_FIRST
7. ACK_SECOND
8. ADD64
9. ADDRESS_COUNT
10. AF_INET
11. AF_UNIX
12. AF_UNSPEC
13. AHA1542
14. ALLOW_ALL_IRQ
15. ALLOW_MEDIUM_REMOVAL
16. ALT
17. ALTGR
18. ANYINTR
19. ARBITRATE
20. ARG_MAX
21. ARRAY_SIZE
22. ASC_INI
23. ASC_RES
24. ASC_STAT
25. ASYNC_FOURPORT
26. ASYNC_NOSCRATCH
27. ASYNC_SPD_CUST
28. ASYNC_SPD_HI
29. ASYNC_SPD_MASK
30. ASYNC_SPD_VHI
31. ATTR_ARCH
32. ATTR_DIR
33. ATTR_HIDDEN
34. ATTR_NONE
35. ATTR_RO
36. ATTR_SYS
37. ATTR_UNUSED
38. ATTR_VOLUME
39. AT_IMR
40. AUX_BUF_SIZE
41. AUX_COMMAND
42. AUX_DEVICE_INFO
43. AUX_INPUT_PORT
44. AUX_IRQ
45. AUX_OUTPUT_PORT
46. AUX_STATUS