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Posts: 992 | Thanked: 995 times | Joined on Dec 2009 @ California
#903
Originally Posted by MohammadAG View Post
/class/input/input4, HID, that means it was attached (or a part of it) as an input device.
CPU frequency doesn't change, and HID devices shouldn't alter frequency.
It's most probably the LEDs as SpeedEvil said.
It's also a plain HDD, nothing that should cause 'boost' events.
The 'input' driver is used by ondemand cpufreq scaling governor to boost CPU frequency immediately after some input event happens - you press unlock, keyboard, touchpad or power button. Attachment of dynamic USB device pursues the same goal.

EDIT: without it the scaling governor boosts frequency only after 75millisec.
 

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