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1
2===========================
3Intel(R) PRO/Wireless 2100 Network Connection Driver for Linux
4README.ipw2100
5
6March 14, 2005
7
8===========================
9Index
10---------------------------
110. Introduction
121. Release 1.1.0 Current Features
132. Command Line Parameters
143. Sysfs Helper Files
154. Radio Kill Switch
165. Dynamic Firmware
176. Power Management
187. Support
198. License
20
21
22===========================
230. Introduction
24------------ ----- ----- ---- --- -- -
25
26This document provides a brief overview of the features supported by the
27IPW2100 driver project. The main project website, where the latest
28development version of the driver can be found, is:
29
30 http://ipw2100.sourceforge.net
31
32There you can find the not only the latest releases, but also information about
33potential fixes and patches, as well as links to the development mailing list
34for the driver project.
35
36
37===========================
381. 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)
44
45Enabled (but not supported) features:
46- Monitor/RFMon mode
47- WPA/WPA2
48
49The distinction between officially supported and enabled is a reflection
50on the amount of validation and interoperability testing that has been
51performed on a given feature.
52
53
54===========================
552. Command Line Parameters
56---------------------------
57
58If the driver is built as a module, the following optional parameters are used
59by entering them on the command line with the modprobe command using this
60syntax:
61
62 modprobe ipw2100 [<option>=<VAL1><,VAL2>...]
63
64For example, to disable the radio on driver loading, enter:
65
66 modprobe ipw2100 disable=1
67
68The ipw2100 driver supports the following module parameters:
69
70Name Value Example:
71debug 0x0-0xffffffff debug=1024
72mode 0,1,2 mode=1 /* AdHoc */
73channel int channel=3 /* Only valid in AdHoc or Monitor */
74associate boolean associate=0 /* Do NOT auto associate */
75disable boolean disable=1 /* Do not power the HW */
76
77
78===========================
793. Sysfs Helper Files
80---------------------------
81
82There are several ways to control the behavior of the driver. Many of the
83general capabilities are exposed through the Wireless Tools (iwconfig). There
84are a few capabilities that are exposed through entries in the Linux Sysfs.
85
86
87----- Driver Level ------
88For the driver level files, look in /sys/bus/pci/drivers/ipw2100/
89
90 debug_level
91
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.
95
96 NOTE: 'debug_level' is only enabled if CONFIG_IPW2100_DEBUG is turn
97 on.
98
99----- Device Level ------
100For the device level files look in
101
102 /sys/bus/pci/drivers/ipw2100/{PCI-ID}/
103
104For example:
105 /sys/bus/pci/drivers/ipw2100/0000:02:01.0
106
107For the device level files, see /sys/bus/pci/drivers/ipw2100:
108
109 rf_kill
110 read -
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)
115 write -
116 0 = If SW based RF kill active, turn the radio back on
117 1 = If radio is on, activate SW based RF kill
118
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
121
122
123===========================
1244. Radio Kill Switch
125---------------------------
126Most laptops provide the ability for the user to physically disable the radio.
127Some vendors have implemented this as a physical switch that requires no
128software to turn the radio off and on. On other laptops, however, the switch
129is controlled through a button being pressed and a software driver then making
130calls to turn the radio off and on. This is referred to as a "software based
131RF kill switch"
132
133See the Sysfs helper file 'rf_kill' for determining the state of the RF switch
134on your system.
135
136
137===========================
1385. Dynamic Firmware
139---------------------------
140As the firmware is licensed under a restricted use license, it can not be
141included within the kernel sources. To enable the IPW2100 you will need a
142firmware image to load into the wireless NIC's processors.
143
144You can obtain these images from <http://ipw2100.sf.net/firmware.php>.
145
146See INSTALL for instructions on installing the firmware.
147
148
149===========================
1506. Power Management
151---------------------------
152The IPW2100 supports the configuration of the Power Save Protocol
153through a private wireless extension interface. The IPW2100 supports
154the following different modes:
155
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
160 packet latencies.
161
162Power management works by powering down the radio after a certain
163interval of time has passed where no packets are passed through the
164radio. Once powered down, the radio remains in that state for a given
165period of time. For higher power savings, the interval between last
166packet processed to sleep is shorter and the sleep period is longer.
167
168When the radio is asleep, the access point sending data to the station
169must buffer packets at the AP until the station wakes up and requests
170any buffered packets. If you have an AP that does not correctly support
171the PSP protocol you may experience packet loss or very poor performance
172while power management is enabled. If this is the case, you will need
173to try and find a firmware update for your AP, or disable power
174management (via `iwconfig eth1 power off`)
175
176To configure the power level on the IPW2100 you use a combination of
177iwconfig and iwpriv. iwconfig is used to turn power management on, off,
178and set it to auto.
179
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
185 enabled.
186 iwpriv eth1 set_power 1-5 Set the power level as specified,
187 enabling power management if not
188 previously enabled.
189
190You can view the current power level setting via:
191
192 iwpriv eth1 get_power
193
194It will return the current period or timeout that is configured as a string
195in the form of xxxx/yyyy (z) where xxxx is the timeout interval (amount of
196time after packet processing), yyyy is the period to sleep (amount of time to
197wait before powering the radio and querying the access point for buffered
198packets), and z is the 'power level'. If power management is turned off the
199xxxx/yyyy will be replaced with 'off' -- the level reported will be the active
200level if `iwconfig eth1 power on` is invoked.
201
202
203===========================
2047. Support
205---------------------------
206
207For general development information and support,
208go to:
209
210 http://ipw2100.sf.net/
211
212The ipw2100 1.1.0 driver and firmware can be downloaded from:
213
214 http://support.intel.com
215
216For installation support on the ipw2100 1.1.0 driver on Linux kernels
2172.6.8 or greater, email support is available from:
218
219 http://supportmail.intel.com
220
221===========================
2228. License
223---------------------------
224
225 Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
226
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.
230
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
234 more details.
235
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.
239
240 The full GNU General Public License is included in this distribution in the
241 file called LICENSE.
242
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
246
diff --git a/Documentation/networking/README.ipw2200 b/Documentation/networking/README.ipw2200
new file mode 100644
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1
2Intel(R) PRO/Wireless 2915ABG Driver for Linux in support of:
3
4Intel(R) PRO/Wireless 2200BG Network Connection
5Intel(R) PRO/Wireless 2915ABG Network Connection
6
7Note: The Intel(R) PRO/Wireless 2915ABG Driver for Linux and Intel(R)
8PRO/Wireless 2200BG Driver for Linux is a unified driver that works on
9both hardware adapters listed above. In this document the Intel(R)
10PRO/Wireless 2915ABG Driver for Linux will be used to reference the
11unified driver.
12
13Copyright (C) 2004-2005, Intel Corporation
14
15README.ipw2200
16
17Version: 1.0.0
18Date : January 31, 2005
19
20
21Index
22-----------------------------------------------
231. Introduction
241.1. Overview of features
251.2. Module parameters
261.3. Wireless Extension Private Methods
271.4. Sysfs Helper Files
282. About the Version Numbers
293. Support
304. License
31
32
331. Introduction
34-----------------------------------------------
35The following sections attempt to provide a brief introduction to using
36the Intel(R) PRO/Wireless 2915ABG Driver for Linux.
37
38This document is not meant to be a comprehensive manual on
39understanding or using wireless technologies, but should be sufficient
40to get you moving without wires on Linux.
41
42For information on building and installing the driver, see the INSTALL
43file.
44
45
461.1. Overview of Features
47-----------------------------------------------
48The current release (1.0.0) supports the following features:
49
50+ BSS mode (Infrastructure, Managed)
51+ IBSS mode (Ad-Hoc)
52+ WEP (OPEN and SHARED KEY mode)
53+ 802.1x EAP via wpa_supplicant and xsupplicant
54+ Wireless Extension support
55+ Full B and G rate support (2200 and 2915)
56+ Full A rate support (2915 only)
57+ Transmit power control
58+ S state support (ACPI suspend/resume)
59+ long/short preamble support
60
61
62
631.2. Command Line Parameters
64-----------------------------------------------
65
66Like many modules used in the Linux kernel, the Intel(R) PRO/Wireless
672915ABG Driver for Linux allows certain configuration options to be
68provided as module parameters. The most common way to specify a module
69parameter is via the command line.
70
71The general form is:
72
73% modprobe ipw2200 parameter=value
74
75Where the supported parameter are:
76
77 associate
78 Set to 0 to disable the auto scan-and-associate functionality of the
79 driver. If disabled, the driver will not attempt to scan
80 for and associate to a network until it has been configured with
81 one or more properties for the target network, for example configuring
82 the network SSID. Default is 1 (auto-associate)
83
84 Example: % modprobe ipw2200 associate=0
85
86 auto_create
87 Set to 0 to disable the auto creation of an Ad-Hoc network
88 matching the channel and network name parameters provided.
89 Default is 1.
90
91 channel
92 channel number for association. The normal method for setting
93 the channel would be to use the standard wireless tools
94 (i.e. `iwconfig eth1 channel 10`), but it is useful sometimes
95 to set this while debugging. Channel 0 means 'ANY'
96
97 debug
98 If using a debug build, this is used to control the amount of debug
99 info is logged. See the 'dval' and 'load' script for more info on
100 how to use this (the dval and load scripts are provided as part
101 of the ipw2200 development snapshot releases available from the
102 SourceForge project at http://ipw2200.sf.net)
103
104 mode
105 Can be used to set the default mode of the adapter.
106 0 = Managed, 1 = Ad-Hoc
107
108
1091.3. Wireless Extension Private Methods
110-----------------------------------------------
111
112As an interface designed to handle generic hardware, there are certain
113capabilities not exposed through the normal Wireless Tool interface. As
114such, a provision is provided for a driver to declare custom, or
115private, methods. The Intel(R) PRO/Wireless 2915ABG Driver for Linux
116defines several of these to configure various settings.
117
118The general form of using the private wireless methods is:
119
120 % iwpriv $IFNAME method parameters
121
122Where $IFNAME is the interface name the device is registered with
123(typically eth1, customized via one of the various network interface
124name managers, such as ifrename)
125
126The supported private methods are:
127
128 get_mode
129 Can be used to report out which IEEE mode the driver is
130 configured to support. Example:
131
132 % iwpriv eth1 get_mode
133 eth1 get_mode:802.11bg (6)
134
135 set_mode
136 Can be used to configure which IEEE mode the driver will
137 support.
138
139 Usage:
140 % iwpriv eth1 set_mode {mode}
141 Where {mode} is a number in the range 1-7:
142 1 802.11a (2915 only)
143 2 802.11b
144 3 802.11ab (2915 only)
145 4 802.11g
146 5 802.11ag (2915 only)
147 6 802.11bg
148 7 802.11abg (2915 only)
149
150 get_preamble
151 Can be used to report configuration of preamble length.
152
153 set_preamble
154 Can be used to set the configuration of preamble length:
155
156 Usage:
157 % iwpriv eth1 set_preamble {mode}
158 Where {mode} is one of:
159 1 Long preamble only
160 0 Auto (long or short based on connection)
161
162
1631.4. Sysfs Helper Files:
164-----------------------------------------------
165
166The Linux kernel provides a pseudo file system that can be used to
167access various components of the operating system. The Intel(R)
168PRO/Wireless 2915ABG Driver for Linux exposes several configuration
169parameters through this mechanism.
170
171An entry in the sysfs can support reading and/or writing. You can
172typically query the contents of a sysfs entry through the use of cat,
173and can set the contents via echo. For example:
174
175% cat /sys/bus/pci/drivers/ipw2200/debug_level
176
177Will report the current debug level of the driver's logging subsystem
178(only available if CONFIG_IPW_DEBUG was configured when the driver was
179built).
180
181You can set the debug level via:
182
183% echo $VALUE > /sys/bus/pci/drivers/ipw2200/debug_level
184
185Where $VALUE would be a number in the case of this sysfs entry. The
186input to sysfs files does not have to be a number. For example, the
187firmware loader used by hotplug utilizes sysfs entries for transferring
188the firmware image from user space into the driver.
189
190The Intel(R) PRO/Wireless 2915ABG Driver for Linux exposes sysfs entries
191at two levels -- driver level, which apply to all instances of the
192driver (in the event that there are more than one device installed) and
193device level, which applies only to the single specific instance.
194
195
1961.4.1 Driver Level Sysfs Helper Files
197-----------------------------------------------
198
199For the driver level files, look in /sys/bus/pci/drivers/ipw2200/
200
201 debug_level
202
203 This controls the same global as the 'debug' module parameter
204
205
2061.4.2 Device Level Sysfs Helper Files
207-----------------------------------------------
208
209For the device level files, look in
210
211 /sys/bus/pci/drivers/ipw2200/{PCI-ID}/
212
213For example:
214 /sys/bus/pci/drivers/ipw2200/0000:02:01.0
215
216For the device level files, see /sys/bus/pci/[drivers/ipw2200:
217
218 rf_kill
219 read -
220 0 = RF kill not enabled (radio on)
221 1 = SW based RF kill active (radio off)
222 2 = HW based RF kill active (radio off)
223 3 = Both HW and SW RF kill active (radio off)
224 write -
225 0 = If SW based RF kill active, turn the radio back on
226 1 = If radio is on, activate SW based RF kill
227
228 NOTE: If you enable the SW based RF kill and then toggle the HW
229 based RF kill from ON -> OFF -> ON, the radio will NOT come back on
230
231 ucode
232 read-only access to the ucode version number
233
234
2352. About the Version Numbers
236-----------------------------------------------
237
238Due to the nature of open source development projects, there are
239frequently changes being incorporated that have not gone through
240a complete validation process. These changes are incorporated into
241development snapshot releases.
242
243Releases are numbered with a three level scheme:
244
245 major.minor.development
246
247Any version where the 'development' portion is 0 (for example
2481.0.0, 1.1.0, etc.) indicates a stable version that will be made
249available for kernel inclusion.
250
251Any version where the 'development' portion is not a 0 (for
252example 1.0.1, 1.1.5, etc.) indicates a development version that is
253being made available for testing and cutting edge users. The stability
254and functionality of the development releases are not know. We make
255efforts to try and keep all snapshots reasonably stable, but due to the
256frequency of their release, and the desire to get those releases
257available as quickly as possible, unknown anomalies should be expected.
258
259The major version number will be incremented when significant changes
260are made to the driver. Currently, there are no major changes planned.
261
262
2633. Support
264-----------------------------------------------
265
266For installation support of the 1.0.0 version, you can contact
267http://supportmail.intel.com, or you can use the open source project
268support.
269
270For general information and support, go to:
271
272 http://ipw2200.sf.net/
273
274
2754. License
276-----------------------------------------------
277
278 Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
279
280 This program is free software; you can redistribute it and/or modify it
281 under the terms of the GNU General Public License version 2 as
282 published by the Free Software Foundation.
283
284 This program is distributed in the hope that it will be useful, but WITHOUT
285 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
286 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
287 more details.
288
289 You should have received a copy of the GNU General Public License along with
290 this program; if not, write to the Free Software Foundation, Inc., 59
291 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
292
293 The full GNU General Public License is included in this distribution in the
294 file called LICENSE.
295
296 Contact Information:
297 James P. Ketrenos <ipw2100-admin@linux.intel.com>
298 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
299
300