[PATCH] Add /proc/devices

[Yaakov (Cygwin/X)]

This patchset implements /proc/devices[1]:

$ cat /proc/devices
Character devices:
  1 mem
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  9 st
 13 misc
 14 sound
117 ttyS
136 tty

Block devices:
  2 fd
  8 sd
 11 sr
 65 sd
 66 sd
 67 sd
 68 sd
 69 sd
 70 sd
 71 sd

The question is how to handle /dev/tty and /dev/console as the
apparently vary now, per cgf's remarks on the main list.

Patches for winsup/cygwin and winsup/doc attached.


Yaakov

[1] http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-proc-devices.html
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