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ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II

2011-12-29T00:17:57Z

Defriesse: Undo revision 53263 by Defriesse (talk)

__NOTOC__
{| width="100%"
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<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
== ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II ==
This is a Mini-PCI Express WiFi Adapter, supported by a driver downloadable from Realtek.

== Features ==
* Chipset: Realtek RTL8192SE / RTL8188CE
* IEEE Standards: 802.11b, 802.11g, 802.11n
* 1x2 MIMO
* PCI ID:
** RTL8192SE: 10ec:8172
** RTL8188CE: 10ec:8176
</div>
|style="vertical-align:top" |
[[image:RealtekWiFi.jpg|ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II]]<br/>
|}
=== Lenovo Partnumbers ===
* 04W1409

== Linux support ==
This chip is supported by the rtlwifi/rtl8192se driver, which was [http://linuxwireless.org/News/2011-07-22 included in kernel in 3.0]. There are two other options available, a Linux driver available for download from Realtek, or ndiswrapper.
(Ubuntu 10.4 support it now).

{{WARN|If you are not comfortable with running development code and have the option, order your ThinkPad with a different WiFi adapter. All other available WiFi options are supported by in-kernel drivers in modern Linux distributions}}

=== rtlwifi ===

The rtlwifi driver which supports this chip was included in kernel 3.0. In some cases the RealTek driver below can be more reliable than the kernel driver.

=== Realtek Linux driver ===

The Realtek Linux driver for this chip can be downloaded from the Realtek [http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&ProdID=226&DownTypeID=3&GetDown=false&Downloads=true#2281 website]

More information about using the Realtek native driver in Ubuntu: [https://bugs.launchpad.net/ubuntu/+source/linux/+bug/401126?comments=all]

Please note: use of this driver on Lenovo systems results in unpredictable fatal crashes on some systems! It's is *not* advised to choose this driver.

One method that appears to drastically reduce the crashes and connection drops is to comment out "-DENABLE_LPS" from the Makefiles while building the Realtek Linux driver. This also reduces the "noise" in the syslog kernel messages generated by LPS. However, it may reduce the battery life since LPS is an acronym for Low Power State.

Known problems:
* Connections randomly drop out after a few minutes (seems to be fixed in version 015)
This problem has been observed with version 015 too. Realtek has been contacted about the problem.
* When using WPA Enterprise, entire system will freeze after a few minutes, requiring reboot
* Freezes also happen with Ad-Hoc mode from time to time

The RealTek driver maybe packaged for your distrobution, for example [http://aur.archlinux.org/packages.php?ID=46797 in the AUR for Arch].

=== ndiswrapper ===
{{NOTE|The use of ndiswrapper is not recommended}}

More information on using the Windows drivers with Ndiswrapper can be found here:[http://ubuntuforums.org/showthread.php?t=1329254].

=== ThinkPads this card may be found in ===
* {{Edge 13"}} (AMD)
* {{Edge 14"}}, {{Edge 15"}}
* {{L412}}, {{L512}}
* {{R400}}, {{R500}}
* {{SL410}}, {{SL510}}
* {{T400}}, {{T410}}, {{T410s}}, {{T500}}, {{T510}}
* {{X100e}}, {{X200s}}, {{X200 Tablet}}, {{X201}}, {{X220}}

[[Category:Components]]

ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II

2011-12-29T00:06:18Z

Defriesse: /* ThinkPads this card may be found in */

__NOTOC__
{| width="100%"
|style="vertical-align:top" |
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
== ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II ==
This is a Mini-PCI Express WiFi Adapter, supported by a driver downloadable from Realtek.

== Features ==
* Chipset: Realtek RTL8192SE / RTL8188CE
* IEEE Standards: 802.11b, 802.11g, 802.11n
* 1x2 MIMO
* PCI ID:
** RTL8192SE: 10ec:8172
** RTL8188CE: 10ec:8176
</div>
|style="vertical-align:top" |
[[image:RealtekWiFi.jpg|ThinkPad 11b/g/n Wireless LAN Mini-PCI Express Adapter II]]<br/>
|}
=== Lenovo Partnumbers ===
* 04W1409

== Linux support ==
This chip is supported by the rtlwifi/rtl8192se driver, which was [http://linuxwireless.org/News/2011-07-22 included in kernel in 3.0]. There are two other options available, a Linux driver available for download from Realtek, or ndiswrapper.
(Ubuntu 10.4 support it now).

{{WARN|If you are not comfortable with running development code and have the option, order your ThinkPad with a different WiFi adapter. All other available WiFi options are supported by in-kernel drivers in modern Linux distributions}}

=== rtlwifi ===

The rtlwifi driver which supports this chip was included in kernel 3.0. In some cases the RealTek driver below can be more reliable than the kernel driver.

=== Realtek Linux driver ===

The Realtek Linux driver for this chip can be downloaded from the Realtek [http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&ProdID=226&DownTypeID=3&GetDown=false&Downloads=true#2281 website]

More information about using the Realtek native driver in Ubuntu: [https://bugs.launchpad.net/ubuntu/+source/linux/+bug/401126?comments=all]

Please note: use of this driver on Lenovo systems results in unpredictable fatal crashes on some systems! It's is *not* advised to choose this driver.

One method that appears to drastically reduce the crashes and connection drops is to comment out "-DENABLE_LPS" from the Makefiles while building the Realtek Linux driver. This also reduces the "noise" in the syslog kernel messages generated by LPS. However, it may reduce the battery life since LPS is an acronym for Low Power State.

Known problems:
* Connections randomly drop out after a few minutes (seems to be fixed in version 015)
This problem has been observed with version 015 too. Realtek has been contacted about the problem.
* When using WPA Enterprise, entire system will freeze after a few minutes, requiring reboot
* Freezes also happen with Ad-Hoc mode from time to time

The RealTek driver maybe packaged for your distrobution, for example [http://aur.archlinux.org/packages.php?ID=46797 in the AUR for Arch].

=== ndiswrapper ===
{{NOTE|The use of ndiswrapper is not recommended}}

More information on using the Windows drivers with Ndiswrapper can be found here:[http://ubuntuforums.org/showthread.php?t=1329254].

=== ThinkPads this card may be found in ===
* {{Edge 13"}} (AMD)
* {{Edge 14"}}, {{Edge 15"}}, {{E525}}
* {{L412}}, {{L512}}
* {{R400}}, {{R500}}
* {{SL410}}, {{SL510}}
* {{T400}}, {{T410}}, {{T410s}}, {{T500}}, {{T510}}
* {{X100e}}, {{X200s}}, {{X200 Tablet}}, {{X201}}, {{X220}}

[[Category:Components]]

Thinkpad-acpi

2011-12-27T13:50:48Z

Defriesse:

{| width="100%"
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|style="vertical-align:top" |
== thinkpad-acpi - ThinkPad ACPI Extras Driver ==
This is a Linux ACPI driver for the ThinkPad laptops written by Borislav Deianov, and currently maintained by [[User:hmh|Henrique de Moraes Holschuh]] and is included with the Linux kernel. It aims to support various features of these laptops which are accessible through the ACPI framework but not otherwise supported by the generic Linux ACPI drivers. As a kernel module, thinkpad-acpi works as a bridge to deliver information about certain hardware events like key presses or control the state of certain hardware features by software.

{{WARN|As of kernel 2.6.27 the thinkpad-acpi bay and dock drivers should no longer be used. Instead use the standard ACPI bay and dock drivers. As of kernel 2.6.31 the thinkpad-acpi bay and dock drivers have been removed completely.}}

{{NOTE|As of kernel 2.6.33 the thinkpad_acpi driver now has a ALSA sub-driver which creates an additional ALSA volume control which represents the volume and mute buttons on the ThinkPad keyboard. Unfortunately no further integration exists at this point with userspace, such as PulseAudio and as such there is no effective change for the end-user}}
|}

==Thinkpad-specific ACPI driver==
This is a Linux ACPI driver for the ThinkPad laptops written by Borislav Deianov and Henrique de Moraes Holschuh. The driver replaces ibm-acpi in Linux mainline as of 2.6.22 (March 2007). To confuse matters further, it appears that there was also an older (now abandoned) driver of the same name written by Erik Rigtorp which never made it into the mainline kernel. The current thinkpad-acpi contains essentially the same functionality as ibm-acpi with some added features. Among which are registering of acpi events to the "thinkvantage" and volume/mute buttons which could previously only be accessed through the use of the [[tpb]] utility.

In Linux Kernel v2.6.31 "make menuconfig" the driver can be enabled in:
<pre>
Device Drivers --->
[*] X86 Platform Specific Device Drivers --->
<M> ThinkPad ACPI Laptop Extras
[ ] Maintainer debug facilities
[ ] Verbose debug mode
[ ] Allow control of important LEDs (unsafe)
[ ] Video output control support
[ ] Support NVRAM polling for hot keys
</pre>

==Hibernate==

When hibernating, thinkpad_acpi should be added to the modules which are unloaded before and reloaded after hibernation. Otherwise, thinkpad_acpi may not be loadable after hibernate again.

For pm-utils, just create the following file:

{{path|/etc/pm/config.d/thinkpad_acpi}}

SUSPEND_MODULES="thinkpad_acpi"

==Hotkeys==
To view which hotkeys are active you can use "acpi_listen", but that is deprecated. A better way is to use "lsinput" and "input-events" commands to look at the output of the thinkpad-acpi input device(s).

One important difference from ibm-acpi for those who wish to enable all possible hot keys, is that thinkpad-acpi automatically enables them. One should not need to do anything to get the best possible thinkpad-acpi configuration for his ThinkPad (as long as he is using the latest thinkpad-acpi).

In particular, old documentation that tells you to "echo enable,0xffffffff >/proc/acpi/ibm/hotkey", or to give thinkpad-acpi any hotkey= module parameters to enable hot keys by default, is likely incorrect.

The thinkpad-acpi driver has detailed documentation, which is shipped inside the Linux kernel sources, as "Documentation/thinkpad-acpi.txt" or as "Documentation/laptops/thinkpad-acpi.txt". If you feel a need to change the hot key mask manually, it is probably best to look at that documentation first to understand the full side effects of any changes.

==sysfs interface==
some of the ThinkPad specific settings can be viewed or altered in sysfs under {{path|/sys/devices/platform/thinkpad_acpi}} and {{path|/sys/devices/platform/thinkpad_hwmon}}

====thinkpad_acpi====
{{path|/sys/devices/platform/thinkpad_acpi}} directory structure is as follows on a T60 with kernel 2.6.31
<pre>
|-- bluetooth_enable
|-- cmos_command
|-- driver -> ../../../bus/platform/drivers/thinkpad_acpi
|-- hotkey_all_mask
|-- hotkey_bios_enabled
|-- hotkey_bios_mask
|-- hotkey_enable
|-- hotkey_mask
|-- hotkey_poll_freq
|-- hotkey_radio_sw
|-- hotkey_recommended_mask
|-- hotkey_report_mode
|-- hotkey_source_mask
|-- leds
| |-- tpacpi::power
| | |-- brightness
| | |-- device -> ../../../thinkpad_acpi
| | |-- max_brightness
| | |-- power
| | | `-- wakeup
| | |-- subsystem -> ../../../../../class/leds
| | |-- trigger
| | `-- uevent
| |-- tpacpi::standby
| | |-- brightness
| | |-- device -> ../../../thinkpad_acpi
| | |-- max_brightness
| | |-- power
| | | `-- wakeup
| | |-- subsystem -> ../../../../../class/leds
| | |-- trigger
| | `-- uevent
| |-- tpacpi::thinklight
| | |-- brightness
| | |-- device -> ../../../thinkpad_acpi
| | |-- max_brightness
| | |-- power
| | | `-- wakeup
| | |-- subsystem -> ../../../../../class/leds
| | |-- trigger
| | `-- uevent
| `-- tpacpi::thinkvantage
| |-- brightness
| |-- device -> ../../../thinkpad_acpi
| |-- max_brightness
| |-- power
| | `-- wakeup
| |-- subsystem -> ../../../../../class/leds
| |-- trigger
| `-- uevent
|-- modalias
|-- power
| `-- wakeup
|-- rfkill
| `-- rfkill0
| |-- claim
| |-- device -> ../../../thinkpad_acpi
| |-- index
| |-- name
| |-- persistent
| |-- power
| | `-- wakeup
| |-- state
| |-- subsystem -> ../../../../../class/rfkill
| |-- type
| `-- uevent
|-- subsystem -> ../../../bus/platform
|-- uevent
|-- wakeup_hotunplug_complete
`-- wakeup_reason
</pre>

====thinkpad_hwmon====
{{path|/sys/devices/platform/thinkpad_hwmon}} directory structure is as follows on a T60 with kernel 2.6.31
<pre>
|-- driver -> ../../../bus/platform/drivers/thinkpad_hwmon
|-- fan1_input
|-- hwmon
| `-- hwmon0
| |-- device -> ../../../thinkpad_hwmon
| |-- power
| | `-- wakeup
| |-- subsystem -> ../../../../../class/hwmon
| `-- uevent
|-- modalias
|-- name
|-- power
| `-- wakeup
|-- pwm1
|-- pwm1_enable
|-- subsystem -> ../../../bus/platform
|-- temp10_input
|-- temp11_input
|-- temp12_input
|-- temp13_input
|-- temp14_input
|-- temp15_input
|-- temp16_input
|-- temp1_input
|-- temp2_input
|-- temp3_input
|-- temp4_input
|-- temp5_input
|-- temp6_input
|-- temp7_input
|-- temp8_input
|-- temp9_input
`-- uevent
</pre>

==proc interface==
some legacy interfaces can also be found under {{path|/proc/acpi/ibm}} these interfaces should be considered deprecated. Please use sysfs instead.

<pre>
|-- beep
|-- bluetooth
|-- cmos
|-- driver
|-- fan
|-- hotkey
|-- led
|-- light
|-- thermal
|-- video
`-- volume
</pre>

==Development==
To help with development and maintenance of the thinkpad-acpi driver, please add your model to the [[List of DMI IDs]].

==Further documentation==
More comprehensive documentation can be found in the kernel source tree under <tt>Documentation/thinkpad-acpi.txt</tt> or <tt>Documentation/laptops/thinkpad-acpi.txt</tt>.

=== External links related to thinkpad-acpi ===
* [http://ibm-acpi.sf.net ibm-acpi/thinkpad-acpi main page in Sourceforge]
* [http://acpi.sourceforge.net Linux ACPI main page in Sourceforge], includes DSDT repository
* [http://www.kernel.org kernel.org main archives]
* [http://repo.or.cz/w/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git thinkpad-acpi development git tree]

[[Category:Drivers]]

=== Supported ThinkPads ===
* {{770X}} , {{770Z}}
* {{A Series}}
* {{G Series}}
* {{R Series}}
* {{T Series}}
* {{W Series}}
* {{X Series}}
* {{Z Series}}
* {{TransNote}}