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Linux/Documentation/hwmon/drivetemp.rst

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Diff markup

Differences between /Documentation/hwmon/drivetemp.rst (Version linux-6.12-rc7) and /Documentation/hwmon/drivetemp.rst (Version linux-4.14.336)


  1 .. SPDX-License-Identifier: GPL-2.0               
  2                                                   
  3 Kernel driver drivetemp                           
  4 =======================                           
  5                                                   
  6                                                   
  7 References                                        
  8 ----------                                        
  9                                                   
 10 ANS T13/1699-D                                    
 11 Information technology - AT Attachment 8 - ATA    
 12                                                   
 13 ANS Project T10/BSR INCITS 513                    
 14 Information technology - SCSI Primary Commands    
 15                                                   
 16 ANS Project INCITS 557                            
 17 Information technology - SCSI / ATA Translatio    
 18                                                   
 19                                                   
 20 Description                                       
 21 -----------                                       
 22                                                   
 23 This driver supports reporting the temperature    
 24 drives with temperature sensors.                  
 25                                                   
 26 If supported, it uses the ATA SCT Command Tran    
 27 the current drive temperature and, if availabl    
 28 as well as historic minimum and maximum temper    
 29 Transport is not supported, the driver uses SM    
 30 the drive temperature.                            
 31                                                   
 32                                                   
 33 Usage Note                                        
 34 ----------                                        
 35                                                   
 36 Reading the drive temperature may reset the sp    
 37 This has been observed with WD120EFAX drives,     
 38 drives as well. The same behavior is observed     
 39 tools are used to access the drive.               
 40 With the WD120EFAX drive, reading the drive te    
 41 driver is still possible _after_ it transition    
 42 reading the drive temperature in this mode wil    
 43 change its mode (meaning the drive will not sp    
 44 drives experience similar behavior.               
 45                                                   
 46 A known workaround for WD120EFAX drives is to     
 47 intervals larger than twice the spin-down time    
 48 will never spin down.                             
 49                                                   
 50                                                   
 51 Sysfs entries                                     
 52 -------------                                     
 53                                                   
 54 Only the temp1_input attribute is always avail    
 55 available only if reported by the drive. All t    
 56 milli-degrees Celsius.                            
 57                                                   
 58 ======================= ======================    
 59 temp1_input             Current drive temperat    
 60 temp1_lcrit             Minimum temperature li    
 61                         this temperature may c    
 62                         device.                   
 63 temp1_min               Minimum recommended co    
 64 temp1_max               Maximum recommended co    
 65 temp1_crit              Maximum temperature li    
 66                         this temperature may c    
 67                         device.                   
 68 temp1_lowest            Minimum temperature se    
 69 temp1_highest           Maximum temperature se    
 70 ======================= ======================    
                                                      

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