| .. SPDX-License-Identifier: GPL-2.0 |
| |
| Kernel driver drivetemp |
| ======================= |
| |
| |
| References |
| ---------- |
| |
| ANS T13/1699-D |
| Information technology - AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS) |
| |
| ANS Project T10/BSR INCITS 513 |
| Information technology - SCSI Primary Commands - 4 (SPC-4) |
| |
| ANS Project INCITS 557 |
| Information technology - SCSI / ATA Translation - 5 (SAT-5) |
| |
| |
| Description |
| ----------- |
| |
| This driver supports reporting the temperature of disk and solid state |
| drives with temperature sensors. |
| |
| If supported, it uses the ATA SCT Command Transport feature to read |
| the current drive temperature and, if available, temperature limits |
| as well as historic minimum and maximum temperatures. If SCT Command |
| Transport is not supported, the driver uses SMART attributes to read |
| the drive temperature. |
| |
| |
| Sysfs entries |
| ------------- |
| |
| Only the temp1_input attribute is always available. Other attributes are |
| available only if reported by the drive. All temperatures are reported in |
| milli-degrees Celsius. |
| |
| ======================= ===================================================== |
| temp1_input Current drive temperature |
| temp1_lcrit Minimum temperature limit. Operating the device below |
| this temperature may cause physical damage to the |
| device. |
| temp1_min Minimum recommended continuous operating limit |
| temp1_max Maximum recommended continuous operating temperature |
| temp1_crit Maximum temperature limit. Operating the device above |
| this temperature may cause physical damage to the |
| device. |
| temp1_lowest Minimum temperature seen this power cycle |
| temp1_highest Maximum temperature seen this power cycle |
| ======================= ===================================================== |
