[u]

[..]
  1. u_char
  2. u_int
  3. u_long
  4. u_short
  5. uch
  6. udp_check
  7. udp_close
  8. udp_connect
  9. udp_err
  10. udp_header
  11. udp_ioctl
  12. udp_loopback
  13. udp_rcv
  14. udp_read
  15. udp_recvfrom
  16. udp_select
  17. udp_send_check
  18. udp_sendto
  19. udp_write
  20. uid_t
  21. uint
  22. ulcolor
  23. ulg
  24. ulong
  25. ultrastor_14f_abort
  26. ultrastor_14f_command
  27. ultrastor_14f_detect
  28. ultrastor_14f_info
  29. ultrastor_14f_queuecommand
  30. ultrastor_14f_reset
  31. ultrastor_interrupt
  32. umode_t
  33. unalt
  34. unblank_screen
  35. uncaps
  36. unchar
  37. unctrl
  38. underline
  39. unexpected_floppy_interrupt
  40. unexpected_hd_interrupt
  41. unix_data_alloc
  42. unix_data_deref
  43. unix_data_lookup
  44. unix_data_ref
  45. unix_proto_accept
  46. unix_proto_bind
  47. unix_proto_connect
  48. unix_proto_create
  49. unix_proto_data
  50. unix_proto_dup
  51. unix_proto_getname
  52. unix_proto_getsockopt
  53. unix_proto_init
  54. unix_proto_ioctl
  55. unix_proto_listen
  56. unix_proto_read
  57. unix_proto_recv
  58. unix_proto_recvfrom
  59. unix_proto_release
  60. unix_proto_select
  61. unix_proto_send
  62. unix_proto_sendto
  63. unix_proto_setsockopt
  64. unix_proto_shutdown
  65. unix_proto_socketpair
  66. unix_proto_write
  67. unixify_text_buffer
  68. unlock_buffer
  69. unlock_creation
  70. unlock_fat
  71. unlock_inode
  72. unlock_it
  73. unlock_skb
  74. unlock_super
  75. unlshift
  76. unmap_page_range
  77. unrshift
  78. unzip
  79. update_attr
  80. update_screen
  81. update_timeout
  82. updcrc
  83. usage
  84. user
  85. user_i387_struct
  86. ush
  87. ushort
  88. ustat
  89. utimbuf
[..]