2 ===========================
3 Intel(R) PRO/Wireless 2100 Network Connection Driver for Linux
8 ===========================
10 ---------------------------
12 1. Release 1.1.0 Current Features
13 2. Command Line Parameters
22 ===========================
24 ------------ ----- ----- ---- --- -- -
26 This document provides a brief overview of the features supported by the
27 IPW2100 driver project. The main project website, where the latest
28 development version of the driver can be found, is:
30 http://ipw2100.sourceforge.net
32 There you can find the not only the latest releases, but also information about
33 potential fixes and patches, as well as links to the development mailing list
34 for the driver project.
37 ===========================
38 1. Release 1.1.0 Current Supported Features
39 ---------------------------
40 - Managed (BSS) and Ad-Hoc (IBSS)
41 - WEP (shared key and open)
42 - Wireless Tools support
43 - 802.1x (tested with XSupplicant 1.0.1)
45 Enabled (but not supported) features:
49 The distinction between officially supported and enabled is a reflection
50 on the amount of validation and interoperability testing that has been
51 performed on a given feature.
54 ===========================
55 2. Command Line Parameters
56 ---------------------------
58 If the driver is built as a module, the following optional parameters are used
59 by entering them on the command line with the modprobe command using this
62 modprobe ipw2100 [<option>=<VAL1><,VAL2>...]
64 For example, to disable the radio on driver loading, enter:
66 modprobe ipw2100 disable=1
68 The ipw2100 driver supports the following module parameters:
71 debug 0x0-0xffffffff debug=1024
72 mode 0,1,2 mode=1 /* AdHoc */
73 channel int channel=3 /* Only valid in AdHoc or Monitor */
74 associate boolean associate=0 /* Do NOT auto associate */
75 disable boolean disable=1 /* Do not power the HW */
78 ===========================
80 ---------------------------
82 There are several ways to control the behavior of the driver. Many of the
83 general capabilities are exposed through the Wireless Tools (iwconfig). There
84 are a few capabilities that are exposed through entries in the Linux Sysfs.
87 ----- Driver Level ------
88 For the driver level files, look in /sys/bus/pci/drivers/ipw2100/
92 This controls the same global as the 'debug' module parameter. For
93 information on the various debugging levels available, run the 'dvals'
94 script found in the driver source directory.
96 NOTE: 'debug_level' is only enabled if CONFIG_IPW2100_DEBUG is turn
99 ----- Device Level ------
100 For the device level files look in
102 /sys/bus/pci/drivers/ipw2100/{PCI-ID}/
105 /sys/bus/pci/drivers/ipw2100/0000:02:01.0
107 For the device level files, see /sys/bus/pci/drivers/ipw2100:
111 0 = RF kill not enabled (radio on)
112 1 = SW based RF kill active (radio off)
113 2 = HW based RF kill active (radio off)
114 3 = Both HW and SW RF kill active (radio off)
116 0 = If SW based RF kill active, turn the radio back on
117 1 = If radio is on, activate SW based RF kill
119 NOTE: If you enable the SW based RF kill and then toggle the HW
120 based RF kill from ON -> OFF -> ON, the radio will NOT come back on
123 ===========================
125 ---------------------------
126 Most laptops provide the ability for the user to physically disable the radio.
127 Some vendors have implemented this as a physical switch that requires no
128 software to turn the radio off and on. On other laptops, however, the switch
129 is controlled through a button being pressed and a software driver then making
130 calls to turn the radio off and on. This is referred to as a "software based
133 See the Sysfs helper file 'rf_kill' for determining the state of the RF switch
137 ===========================
139 ---------------------------
140 As the firmware is licensed under a restricted use license, it can not be
141 included within the kernel sources. To enable the IPW2100 you will need a
142 firmware image to load into the wireless NIC's processors.
144 You can obtain these images from <http://ipw2100.sf.net/firmware.php>.
146 See INSTALL for instructions on installing the firmware.
149 ===========================
151 ---------------------------
152 The IPW2100 supports the configuration of the Power Save Protocol
153 through a private wireless extension interface. The IPW2100 supports
154 the following different modes:
156 off No power management. Radio is always on.
157 on Automatic power management
158 1-5 Different levels of power management. The higher the
159 number the greater the power savings, but with an impact to
162 Power management works by powering down the radio after a certain
163 interval of time has passed where no packets are passed through the
164 radio. Once powered down, the radio remains in that state for a given
165 period of time. For higher power savings, the interval between last
166 packet processed to sleep is shorter and the sleep period is longer.
168 When the radio is asleep, the access point sending data to the station
169 must buffer packets at the AP until the station wakes up and requests
170 any buffered packets. If you have an AP that does not correctly support
171 the PSP protocol you may experience packet loss or very poor performance
172 while power management is enabled. If this is the case, you will need
173 to try and find a firmware update for your AP, or disable power
174 management (via `iwconfig eth1 power off`)
176 To configure the power level on the IPW2100 you use a combination of
177 iwconfig and iwpriv. iwconfig is used to turn power management on, off,
180 iwconfig eth1 power off Disables radio power down
181 iwconfig eth1 power on Enables radio power management to
182 last set level (defaults to AUTO)
183 iwpriv eth1 set_power 0 Sets power level to AUTO and enables
184 power management if not previously
186 iwpriv eth1 set_power 1-5 Set the power level as specified,
187 enabling power management if not
190 You can view the current power level setting via:
192 iwpriv eth1 get_power
194 It will return the current period or timeout that is configured as a string
195 in the form of xxxx/yyyy (z) where xxxx is the timeout interval (amount of
196 time after packet processing), yyyy is the period to sleep (amount of time to
197 wait before powering the radio and querying the access point for buffered
198 packets), and z is the 'power level'. If power management is turned off the
199 xxxx/yyyy will be replaced with 'off' -- the level reported will be the active
200 level if `iwconfig eth1 power on` is invoked.
203 ===========================
205 ---------------------------
207 For general development information and support,
210 http://ipw2100.sf.net/
212 The ipw2100 1.1.0 driver and firmware can be downloaded from:
214 http://support.intel.com
216 For installation support on the ipw2100 1.1.0 driver on Linux kernels
217 2.6.8 or greater, email support is available from:
219 http://supportmail.intel.com
221 ===========================
223 ---------------------------
225 Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
227 This program is free software; you can redistribute it and/or modify it
228 under the terms of the GNU General Public License (version 2) as
229 published by the Free Software Foundation.
231 This program is distributed in the hope that it will be useful, but WITHOUT
232 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
233 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
236 You should have received a copy of the GNU General Public License along with
237 this program; if not, write to the Free Software Foundation, Inc., 59
238 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
240 The full GNU General Public License is included in this distribution in the
243 License Contact Information:
244 James P. Ketrenos <ipw2100-admin@linux.intel.com>
245 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497