diff options
author | James Ketrenos <jketreno@linux.intel.com> | 2005-03-25 13:31:53 -0500 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-05-27 21:59:35 -0400 |
commit | 43f66a6ce8da299344cf1bc2ac2311889cc88555 (patch) | |
tree | c918d137e808acb0d12492f7f0fd9ba015d6cc28 /Documentation/networking/README.ipw2200 | |
parent | 2c86c275015c880e810830304a3a4ab94803b38b (diff) |
Add ipw2200 wireless driver.
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1 | |||
2 | Intel(R) PRO/Wireless 2915ABG Driver for Linux in support of: | ||
3 | |||
4 | Intel(R) PRO/Wireless 2200BG Network Connection | ||
5 | Intel(R) PRO/Wireless 2915ABG Network Connection | ||
6 | |||
7 | Note: The Intel(R) PRO/Wireless 2915ABG Driver for Linux and Intel(R) | ||
8 | PRO/Wireless 2200BG Driver for Linux is a unified driver that works on | ||
9 | both hardware adapters listed above. In this document the Intel(R) | ||
10 | PRO/Wireless 2915ABG Driver for Linux will be used to reference the | ||
11 | unified driver. | ||
12 | |||
13 | Copyright (C) 2004-2005, Intel Corporation | ||
14 | |||
15 | README.ipw2200 | ||
16 | |||
17 | Version: 1.0.0 | ||
18 | Date : January 31, 2005 | ||
19 | |||
20 | |||
21 | Index | ||
22 | ----------------------------------------------- | ||
23 | 1. Introduction | ||
24 | 1.1. Overview of features | ||
25 | 1.2. Module parameters | ||
26 | 1.3. Wireless Extension Private Methods | ||
27 | 1.4. Sysfs Helper Files | ||
28 | 2. About the Version Numbers | ||
29 | 3. Support | ||
30 | 4. License | ||
31 | |||
32 | |||
33 | 1. Introduction | ||
34 | ----------------------------------------------- | ||
35 | The following sections attempt to provide a brief introduction to using | ||
36 | the Intel(R) PRO/Wireless 2915ABG Driver for Linux. | ||
37 | |||
38 | This document is not meant to be a comprehensive manual on | ||
39 | understanding or using wireless technologies, but should be sufficient | ||
40 | to get you moving without wires on Linux. | ||
41 | |||
42 | For information on building and installing the driver, see the INSTALL | ||
43 | file. | ||
44 | |||
45 | |||
46 | 1.1. Overview of Features | ||
47 | ----------------------------------------------- | ||
48 | The 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 | |||
63 | 1.2. Command Line Parameters | ||
64 | ----------------------------------------------- | ||
65 | |||
66 | Like many modules used in the Linux kernel, the Intel(R) PRO/Wireless | ||
67 | 2915ABG Driver for Linux allows certain configuration options to be | ||
68 | provided as module parameters. The most common way to specify a module | ||
69 | parameter is via the command line. | ||
70 | |||
71 | The general form is: | ||
72 | |||
73 | % modprobe ipw2200 parameter=value | ||
74 | |||
75 | Where 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 | |||
109 | 1.3. Wireless Extension Private Methods | ||
110 | ----------------------------------------------- | ||
111 | |||
112 | As an interface designed to handle generic hardware, there are certain | ||
113 | capabilities not exposed through the normal Wireless Tool interface. As | ||
114 | such, a provision is provided for a driver to declare custom, or | ||
115 | private, methods. The Intel(R) PRO/Wireless 2915ABG Driver for Linux | ||
116 | defines several of these to configure various settings. | ||
117 | |||
118 | The general form of using the private wireless methods is: | ||
119 | |||
120 | % iwpriv $IFNAME method parameters | ||
121 | |||
122 | Where $IFNAME is the interface name the device is registered with | ||
123 | (typically eth1, customized via one of the various network interface | ||
124 | name managers, such as ifrename) | ||
125 | |||
126 | The 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 | |||
163 | 1.4. Sysfs Helper Files: | ||
164 | ----------------------------------------------- | ||
165 | |||
166 | The Linux kernel provides a pseudo file system that can be used to | ||
167 | access various components of the operating system. The Intel(R) | ||
168 | PRO/Wireless 2915ABG Driver for Linux exposes several configuration | ||
169 | parameters through this mechanism. | ||
170 | |||
171 | An entry in the sysfs can support reading and/or writing. You can | ||
172 | typically query the contents of a sysfs entry through the use of cat, | ||
173 | and can set the contents via echo. For example: | ||
174 | |||
175 | % cat /sys/bus/pci/drivers/ipw2200/debug_level | ||
176 | |||
177 | Will report the current debug level of the driver's logging subsystem | ||
178 | (only available if CONFIG_IPW_DEBUG was configured when the driver was | ||
179 | built). | ||
180 | |||
181 | You can set the debug level via: | ||
182 | |||
183 | % echo $VALUE > /sys/bus/pci/drivers/ipw2200/debug_level | ||
184 | |||
185 | Where $VALUE would be a number in the case of this sysfs entry. The | ||
186 | input to sysfs files does not have to be a number. For example, the | ||
187 | firmware loader used by hotplug utilizes sysfs entries for transferring | ||
188 | the firmware image from user space into the driver. | ||
189 | |||
190 | The Intel(R) PRO/Wireless 2915ABG Driver for Linux exposes sysfs entries | ||
191 | at two levels -- driver level, which apply to all instances of the | ||
192 | driver (in the event that there are more than one device installed) and | ||
193 | device level, which applies only to the single specific instance. | ||
194 | |||
195 | |||
196 | 1.4.1 Driver Level Sysfs Helper Files | ||
197 | ----------------------------------------------- | ||
198 | |||
199 | For 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 | |||
206 | 1.4.2 Device Level Sysfs Helper Files | ||
207 | ----------------------------------------------- | ||
208 | |||
209 | For the device level files, look in | ||
210 | |||
211 | /sys/bus/pci/drivers/ipw2200/{PCI-ID}/ | ||
212 | |||
213 | For example: | ||
214 | /sys/bus/pci/drivers/ipw2200/0000:02:01.0 | ||
215 | |||
216 | For 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 | |||
235 | 2. About the Version Numbers | ||
236 | ----------------------------------------------- | ||
237 | |||
238 | Due to the nature of open source development projects, there are | ||
239 | frequently changes being incorporated that have not gone through | ||
240 | a complete validation process. These changes are incorporated into | ||
241 | development snapshot releases. | ||
242 | |||
243 | Releases are numbered with a three level scheme: | ||
244 | |||
245 | major.minor.development | ||
246 | |||
247 | Any version where the 'development' portion is 0 (for example | ||
248 | 1.0.0, 1.1.0, etc.) indicates a stable version that will be made | ||
249 | available for kernel inclusion. | ||
250 | |||
251 | Any version where the 'development' portion is not a 0 (for | ||
252 | example 1.0.1, 1.1.5, etc.) indicates a development version that is | ||
253 | being made available for testing and cutting edge users. The stability | ||
254 | and functionality of the development releases are not know. We make | ||
255 | efforts to try and keep all snapshots reasonably stable, but due to the | ||
256 | frequency of their release, and the desire to get those releases | ||
257 | available as quickly as possible, unknown anomalies should be expected. | ||
258 | |||
259 | The major version number will be incremented when significant changes | ||
260 | are made to the driver. Currently, there are no major changes planned. | ||
261 | |||
262 | |||
263 | 3. Support | ||
264 | ----------------------------------------------- | ||
265 | |||
266 | For installation support of the 1.0.0 version, you can contact | ||
267 | http://supportmail.intel.com, or you can use the open source project | ||
268 | support. | ||
269 | |||
270 | For general information and support, go to: | ||
271 | |||
272 | http://ipw2200.sf.net/ | ||
273 | |||
274 | |||
275 | 4. 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 | |||