incubator-nuttx

History

Gregory Nutt f1671bb6a7 Alloc CONFIG_FS_READABLE/WRITABLE to be defined in Kconfig files while preserving backward compatibility with legacy configurations (for the time being)		2013-11-15 09:49:27 -06:00
..
Kconfig	Alloc CONFIG_FS_READABLE/WRITABLE to be defined in Kconfig files while preserving backward compatibility with legacy configurations (for the time being)	2013-11-15 09:49:27 -06:00
Make.defs	fs/procfs: Add a tiny, primitive procfs file system. Might get more interesting in the future	2013-11-13 15:59:14 -06:00
README.txt	fs/binfs/README.txt: Add a README file	2013-11-13 16:40:03 -06:00
fs_procfs.c	fs/procfs: Add a tiny, primitive procfs file system. Might get more interesting in the future	2013-11-13 15:59:14 -06:00

README.txt

fs/procfs README
================

  This is a tiny procfs file system that allows read-only access to a few
  attributes of a task or thread.  This tiny procfs fs file system can be
  built into the system by enabling:

    CONFIG_FS_PROCFS=y

  It can then be mounted from the NSH command like like:

    nsh> mount -t procfs /proc

Example
=======

  NuttShell (NSH) NuttX-6.31
  nsh> mount -t procfs /proc

  nsh> ls /proc
  /proc:
   0/
   1/

  nsh> ls /proc/1
  /proc/1:
   status
   cmdline

  nsh> cat /proc/1/status
  Name:       init
  Type:       Task
  State:      Running
  Priority:   100
  Scheduler:  SCHED_FIFO
  SigMask:    00000000

  nsh> cat /proc/1/cmdline
  init

  nsh> sleep 100 &
  sleep [2:100]
  nsh> ls /proc
  ls /proc
  /proc:
   0/
   1/
   2/

  nsh> cat /proc/2/cmdline
  <pthread> 0x527420