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1. Usage
========
hwinfo [debug=deb_flag] [log=log_file] [list[+]=hw_item] [[+|-]probe_option1] [[+|-]probe_option2] ...
Examples:
hwinfo
- probes for nearly everything
hwinfo +all
- probes for everything
hwinfo log=hw_log
- default probing, output is written to hw_log
*** Please don't use "hwinfo >some_log 2>&1" to store the output into a
log file! ***
hwinfo -all +ide
- probe for ide drives only
hwinfo +all -isapnp -floppy
- probe for everything *except* isapnp and floppies
Some probing flags do not stand for complete modules but enable additional
features; e.g. "pci.range" or "cdrom.info".
Example:
hwinfo -all +cdrom
gives a list of all cdrom's
hwinfo -all +cdrom.info
additionally reads the iso9660 info
To get a list of all supported probing flags, call 'hwinfo -all'.
2. Environment variables/kernel cmdline parameters
==================================================
You can control the hardware probing using the environment variable
"hwprobe" and the kernel cmdline parameters "hwprobe" & "x11".
If "hwprobe" is set on the kernel cmdline, the environment variable
"hwprobe" is ignored. Otherwise, the meaning of both is exactly the same.
x11
- Controls the X server/X version to prefer. It is either "3" or "4" or the
name of the X server/X server module to use (XF3: server name without
the leading "XF86_", XF4: the server module name).
Examples:
x11=3
o prefer XFree86 3.x over 4.x (if possible)
x11=SVGA
o use the XF86_SVGA server (*** Even if the server does not
support the card! ***)
x11=nv
o use the XF4 nv_drv.o driver (*** Even if the module does not
support the card! ***)
hwprobe
- Controls which probing flags should *always* be set/cleared. (These
settings *cannot* be overridden by command line switches.)
Examples:
hwprobe=-isapnp
o *never* do any isapnp probing
hwprobe=-braille,-modem
o don't look for braille displays & modems
- Allows you to add and remove hardware from the probing results. In this case
the syntax is (-: remove, +: add at end of list, <nothing>: add at begin of
list):
hwprobe=[+-]<device_class>:<vendor_id>:<device_id>[:<unix_device_file>]
<device_class>, <vendor_id> and <device_id> are device ids as used by libhd.
See the output of hwinfo for examples. In connection with "-", you can use
"*" as a placeholder that matches every id.
Note: <unix_device_file> is optional.
Note2: you cannot usefully *add* hardware that needs more info than that
given by the hwprobe entry. Disks & floppies are notable examples.
(But you can *remove* them.)
Here is a typical hwinfo output for a mouse, with the relevant ids
underlined (<device_class> is the combined base_class & sub_class),
[see 1st example below]:
14: PS/2 00.0: 10500 PS/2 Mouse
^^^^^ --> <device_class>
[Created at mouse.110]
Vendor: s0200 "Unknown"
^^^^^ --> <vendor_id>
Model: 0002 "Generic PS/2 Mouse"
^^^^ --> <device_id>
Device File: /dev/psaux
^^^^^^^^^^ --> <unix_device_file>
Driver Info #0:
XFree86 Protocol: ps/2
GPM Protocol: ps2
Attached to: #8 (PS/2 Controller)
Examples:
hwprobe=+10500:s200:2:/dev/psaux
o add a ps/2 mouse [at the end of the hardware list]
hwprobe=10500:s200:2:/dev/psaux
o add a ps/2 mouse [at the start of the hardware list, so it
is our default mouse]
hwprobe=+10b00:s5001:0:/dev/ttyS0
o add a braille display connected to /dev/ttyS0
hwprobe=-10500:s200:2:/dev/psaux
o remove ps/2 mice attached to /dev/psaux
hwprobe=-10500:s200:2
o remove all ps/2 mice
hwprobe=-10500:*:*
o remove all ps/2 mice
hwprobe=-*:*:*:/dev/hdc
o remove /dev/hdc
hwprobe=+401:1274:5000
o add an ensoniq sound card
Grafics cards are are slightly trickier:
hwprobe=+300:1014:b7
o add a Fire GL1 card
Note: this way you'll get a multihead config. You'll probably
rather want the following example.
hwprobe=-300:*:*,+300:1014:b7
o remove all graphics cards; then add a Fire GL1 card
hwprobe=+400:121a:1
o add a 3fx voodoo card (Note the class "400", not "300"!)
- for more ids, see "src/ids/names.*" and "src/ids/drivers.*"
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