https://bugzilla.kernel.org/show_bug.cgi?id=19822
Summary: Releasing EVIOCGRAB causes rfkill state to change
Product: ACPI
Version: 2.5
Kernel Version: 2.6.35.7
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Platform-Drivers
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=32632)
--> (https://bugzilla.kernel.org/attachment.cgi?id=32632)
Small program to trigger the bug
Hardware: Thinkpad T500
When an EVIOCGRAB is released on thinkpad_acpi's /dev/input/eventX device
("ThinkPad Extra Buttons", "thinkpad_acpi/input0"), it re-enables both the
bluetooth and wireless radios if they had previously been turned off in
software.
I can reproduce this at will using the following method:
1. Disable either or both of the radios by writing 0 to
/sys/class/rfkill/*/state.
2. Run the attached program with the appropriate device as the argument.
This also seems to be present in 2.6.34 and 2.6.32.
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