14 lines
		
	
	
		
			560 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
		
			560 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| What:		/sys/devices/platform/*/cnqf_enable
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| Date:		September 2022
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| Contact:	Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
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| Description:	Reading this file tells if the AMD Platform Management(PMF)
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| 		Cool n Quiet Framework(CnQF) feature is enabled or not.
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| 
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| 		This feature is not enabled by default and gets only turned on
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| 		if OEM BIOS passes a "flag" to PMF ACPI function (index 11 or 12)
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| 		or in case the user writes "on".
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| 
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| 		To turn off CnQF user can write "off" to the sysfs node.
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| 		Note: Systems that support auto mode will not have this sysfs file
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| 		available.
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