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ACPI: thinkpad-acpi: export to sysfs the state of the radio slider sw…
…itch Some ThinkPad models, notably the T60 and X60, have a slider switch to enable and disable the radios. The switch has the capability of force-disabling the radios in hardware on most models, and it is supposed to affect all radios (WLAN, WWAN, BlueTooth). Export the switch state as a sysfs attribute, on ThinkPads where it is available. Thanks to Henning Schild for asking for this feature, and for tracking down the EC register that holds the radio switch state. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Henning Schild <henning@wh9.tu-dresden.de> Signed-off-by: Len Brown <len.brown@intel.com>
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Henrique de Moraes Holschuh
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Len Brown
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Jul 22, 2007
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