shell小记：lsdev

lsdev

lsdev
安装

使用
作用

bug

安装

$ sudo apt-get install procinfo

使用

通过

man lsdev

可以查看相关帮助文档：

LSDEV(8)                Linux System Manual                LSDEV(8)

NAME
lsdev - display information about installed hardware

SYNOPSIS
lsdev

DESCRIPTION
lsdev  gathers  information  about your computer's installed
hardware from the interrupts, ioports and dma files  in  the
/proc  directory,  thus giving you a quick overview of which
hardware uses what I/O addresses and what IRQ and DMA  chan‐
nels.

OPTIONS
None.

FILES
/proc/interrupts
IRQ channels.

/proc/ioports
I/O memory addresses.

/proc/dma
DMA channels.

BUGS
lsdev can't always figure out which lines in the three exam‐
ined files refer to one and the same device,  because  these
files  sometimes  use  different names for the same piece of
hardware. For example,  in  some  kernels  the  keyboard  is
referred  to  as `kbd' in /proc/ioports and as `keyboard' in
/proc/interrupts.  This should be fixed in the  kernel,  not
in  lsdev  (as has indeed happened for this particular exam‐
ple).

The program does however try to  match  lines  by  stripping
anything after a space or open parenthesis from the name, so
that e.g. the `serial' lines from /proc/interrupts match the
`serial(set)'  lines  from  /proc/ioports.   This attempt at
DWIM might be considered a bug in itself.

This program only shows the kernel's idea of  what  hardware
is present, not what's actually physically available.

SEE ALSO
procinfo(8).

AUTHOR
Sander van Malssen svm@kozmix.cistron.nl

作用

lsdev

的使用比较简单，不需要参数，它能够获取你电脑上已安装的硬件信息，它主要从

/proc/interrupts

、

/proc/ioports

、

/proc/dma

文件中读取你所要的信息。

bug

当使用

lsdev

的时候，如果一个设备同时有多个名字，例如键盘keyboard在

/proc/ioports

中命名为

kbd

，而在

/proc/interrupts

中则命名为

keyboard

，而

lsdev

并不能识别出两者均为同一个设备。但其实这并不是

lsdev

的bug，与内核有关。