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Fixed MTP to work with TWRP
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Documentation/networking/README.ipw2100
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Documentation/networking/README.ipw2100
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Intel(R) PRO/Wireless 2100 Driver for Linux in support of:
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Intel(R) PRO/Wireless 2100 Network Connection
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Copyright (C) 2003-2006, Intel Corporation
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README.ipw2100
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Version: git-1.1.5
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Date : January 25, 2006
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Index
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-----------------------------------------------
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0. IMPORTANT INFORMATION BEFORE USING THIS DRIVER
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1. Introduction
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2. Release git-1.1.5 Current Features
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3. Command Line Parameters
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4. Sysfs Helper Files
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5. Radio Kill Switch
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6. Dynamic Firmware
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7. Power Management
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8. Support
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9. License
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0. IMPORTANT INFORMATION BEFORE USING THIS DRIVER
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-----------------------------------------------
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Important Notice FOR ALL USERS OR DISTRIBUTORS!!!!
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Intel wireless LAN adapters are engineered, manufactured, tested, and
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quality checked to ensure that they meet all necessary local and
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governmental regulatory agency requirements for the regions that they
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are designated and/or marked to ship into. Since wireless LANs are
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generally unlicensed devices that share spectrum with radars,
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satellites, and other licensed and unlicensed devices, it is sometimes
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necessary to dynamically detect, avoid, and limit usage to avoid
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interference with these devices. In many instances Intel is required to
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provide test data to prove regional and local compliance to regional and
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governmental regulations before certification or approval to use the
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product is granted. Intel's wireless LAN's EEPROM, firmware, and
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software driver are designed to carefully control parameters that affect
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radio operation and to ensure electromagnetic compliance (EMC). These
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parameters include, without limitation, RF power, spectrum usage,
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channel scanning, and human exposure.
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For these reasons Intel cannot permit any manipulation by third parties
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of the software provided in binary format with the wireless WLAN
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adapters (e.g., the EEPROM and firmware). Furthermore, if you use any
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patches, utilities, or code with the Intel wireless LAN adapters that
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have been manipulated by an unauthorized party (i.e., patches,
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utilities, or code (including open source code modifications) which have
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not been validated by Intel), (i) you will be solely responsible for
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ensuring the regulatory compliance of the products, (ii) Intel will bear
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no liability, under any theory of liability for any issues associated
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with the modified products, including without limitation, claims under
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the warranty and/or issues arising from regulatory non-compliance, and
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(iii) Intel will not provide or be required to assist in providing
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support to any third parties for such modified products.
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Note: Many regulatory agencies consider Wireless LAN adapters to be
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modules, and accordingly, condition system-level regulatory approval
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upon receipt and review of test data documenting that the antennas and
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system configuration do not cause the EMC and radio operation to be
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non-compliant.
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The drivers available for download from SourceForge are provided as a
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part of a development project. Conformance to local regulatory
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requirements is the responsibility of the individual developer. As
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such, if you are interested in deploying or shipping a driver as part of
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solution intended to be used for purposes other than development, please
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obtain a tested driver from Intel Customer Support at:
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http://www.intel.com/support/wireless/sb/CS-006408.htm
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1. Introduction
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-----------------------------------------------
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This document provides a brief overview of the features supported by the
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IPW2100 driver project. The main project website, where the latest
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development version of the driver can be found, is:
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http://ipw2100.sourceforge.net
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There you can find the not only the latest releases, but also information about
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potential fixes and patches, as well as links to the development mailing list
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for the driver project.
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2. Release git-1.1.5 Current Supported Features
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-----------------------------------------------
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- Managed (BSS) and Ad-Hoc (IBSS)
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- WEP (shared key and open)
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- Wireless Tools support
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- 802.1x (tested with XSupplicant 1.0.1)
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Enabled (but not supported) features:
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- Monitor/RFMon mode
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- WPA/WPA2
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The distinction between officially supported and enabled is a reflection
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on the amount of validation and interoperability testing that has been
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performed on a given feature.
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3. Command Line Parameters
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-----------------------------------------------
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If the driver is built as a module, the following optional parameters are used
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by entering them on the command line with the modprobe command using this
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syntax:
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modprobe ipw2100 [<option>=<VAL1><,VAL2>...]
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For example, to disable the radio on driver loading, enter:
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modprobe ipw2100 disable=1
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The ipw2100 driver supports the following module parameters:
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Name Value Example:
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debug 0x0-0xffffffff debug=1024
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mode 0,1,2 mode=1 /* AdHoc */
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channel int channel=3 /* Only valid in AdHoc or Monitor */
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associate boolean associate=0 /* Do NOT auto associate */
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disable boolean disable=1 /* Do not power the HW */
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4. Sysfs Helper Files
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---------------------------
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-----------------------------------------------
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There are several ways to control the behavior of the driver. Many of the
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general capabilities are exposed through the Wireless Tools (iwconfig). There
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are a few capabilities that are exposed through entries in the Linux Sysfs.
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----- Driver Level ------
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For the driver level files, look in /sys/bus/pci/drivers/ipw2100/
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debug_level
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This controls the same global as the 'debug' module parameter. For
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information on the various debugging levels available, run the 'dvals'
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script found in the driver source directory.
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NOTE: 'debug_level' is only enabled if CONFIG_IPW2100_DEBUG is turn
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on.
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----- Device Level ------
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For the device level files look in
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/sys/bus/pci/drivers/ipw2100/{PCI-ID}/
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For example:
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/sys/bus/pci/drivers/ipw2100/0000:02:01.0
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For the device level files, see /sys/bus/pci/drivers/ipw2100:
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rf_kill
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read -
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0 = RF kill not enabled (radio on)
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1 = SW based RF kill active (radio off)
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2 = HW based RF kill active (radio off)
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3 = Both HW and SW RF kill active (radio off)
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write -
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0 = If SW based RF kill active, turn the radio back on
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1 = If radio is on, activate SW based RF kill
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NOTE: If you enable the SW based RF kill and then toggle the HW
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based RF kill from ON -> OFF -> ON, the radio will NOT come back on
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5. Radio Kill Switch
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-----------------------------------------------
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Most laptops provide the ability for the user to physically disable the radio.
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Some vendors have implemented this as a physical switch that requires no
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software to turn the radio off and on. On other laptops, however, the switch
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is controlled through a button being pressed and a software driver then making
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calls to turn the radio off and on. This is referred to as a "software based
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RF kill switch"
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See the Sysfs helper file 'rf_kill' for determining the state of the RF switch
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on your system.
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6. Dynamic Firmware
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-----------------------------------------------
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As the firmware is licensed under a restricted use license, it can not be
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included within the kernel sources. To enable the IPW2100 you will need a
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firmware image to load into the wireless NIC's processors.
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You can obtain these images from <http://ipw2100.sf.net/firmware.php>.
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See INSTALL for instructions on installing the firmware.
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7. Power Management
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-----------------------------------------------
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The IPW2100 supports the configuration of the Power Save Protocol
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through a private wireless extension interface. The IPW2100 supports
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the following different modes:
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off No power management. Radio is always on.
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on Automatic power management
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1-5 Different levels of power management. The higher the
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number the greater the power savings, but with an impact to
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packet latencies.
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Power management works by powering down the radio after a certain
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interval of time has passed where no packets are passed through the
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radio. Once powered down, the radio remains in that state for a given
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period of time. For higher power savings, the interval between last
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packet processed to sleep is shorter and the sleep period is longer.
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When the radio is asleep, the access point sending data to the station
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must buffer packets at the AP until the station wakes up and requests
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any buffered packets. If you have an AP that does not correctly support
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the PSP protocol you may experience packet loss or very poor performance
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while power management is enabled. If this is the case, you will need
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to try and find a firmware update for your AP, or disable power
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management (via `iwconfig eth1 power off`)
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To configure the power level on the IPW2100 you use a combination of
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iwconfig and iwpriv. iwconfig is used to turn power management on, off,
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and set it to auto.
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iwconfig eth1 power off Disables radio power down
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iwconfig eth1 power on Enables radio power management to
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last set level (defaults to AUTO)
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iwpriv eth1 set_power 0 Sets power level to AUTO and enables
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power management if not previously
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enabled.
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iwpriv eth1 set_power 1-5 Set the power level as specified,
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enabling power management if not
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previously enabled.
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You can view the current power level setting via:
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iwpriv eth1 get_power
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It will return the current period or timeout that is configured as a string
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in the form of xxxx/yyyy (z) where xxxx is the timeout interval (amount of
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time after packet processing), yyyy is the period to sleep (amount of time to
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wait before powering the radio and querying the access point for buffered
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packets), and z is the 'power level'. If power management is turned off the
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xxxx/yyyy will be replaced with 'off' -- the level reported will be the active
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level if `iwconfig eth1 power on` is invoked.
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8. Support
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-----------------------------------------------
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For general development information and support,
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go to:
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http://ipw2100.sf.net/
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The ipw2100 1.1.0 driver and firmware can be downloaded from:
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http://support.intel.com
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For installation support on the ipw2100 1.1.0 driver on Linux kernels
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2.6.8 or greater, email support is available from:
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http://supportmail.intel.com
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9. License
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-----------------------------------------------
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Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License (version 2) as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59
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Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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The full GNU General Public License is included in this distribution in the
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file called LICENSE.
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License Contact Information:
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James P. Ketrenos <ipw2100-admin@linux.intel.com>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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