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zhengshaobo1 be767dde01 vela fs procfs add clock procfs entry procfs enrty add clock feature procfs operations Signed-off-by: zhengshaobo1 <zhengshaobo1@xiaomi.com> Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>		2023-09-19 10:34:48 +08:00
..
CMakeLists.txt
fs_procfs.c	vela fs procfs add clock procfs entry	2023-09-19 10:34:48 +08:00
fs_procfscpuinfo.c
fs_procfscpuload.c
fs_procfscritmon.c
fs_procfsfdt.c
fs_procfsiobinfo.c
fs_procfsmeminfo.c
fs_procfsproc.c
fs_procfstcbinfo.c
fs_procfsuptime.c
fs_procfsutil.c
fs_procfsversion.c
fs_skeleton.c
Kconfig
Make.defs
README.txt

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