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smart: Clarify ID_ATA_SMART_ACCESS udev property values #1064

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Sep 30, 2024
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smart: Clarify ID_ATA_SMART_ACCESS udev property values #1064

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15 changes: 13 additions & 2 deletions src/plugins/smart/smart-common.c
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Original file line number Diff line number Diff line change
Expand Up @@ -146,14 +146,25 @@
* libblockdev generally tends to avoid any udev interaction, leaving the burden
* to callers.
*
* Valid values for this property include `auto`, `linux-ide`, `sat16`, `sat12`,
* `sunplus`, `jmicron`.
* Valid values for this property include:
* - `'sat16'`: 16 Byte SCSI ATA SAT Passthru
* - `'sat12'`: 12 Byte SCSI ATA SAT Passthru
* - `'linux-ide'`: Native Linux IDE
* - `'sunplus'`: SunPlus USB/ATA bridges
* - `'jmicron'`: JMicron USB/ATA bridges
* - `'none'`: No access method, avoid any I/O and ignore the device
* - `'auto'`: Autodetection based on parent subsystem (default)
*
* A common example to override QEMU ATA device type, which often requires legacy
* IDE protocol:
* |[
* KERNEL=="sd*", ENV{ID_VENDOR}=="ATA", ENV{ID_MODEL}=="QEMU_HARDDISK", ENV{ID_ATA}=="1", ENV{ID_ATA_SMART_ACCESS}="linux-ide"
* ]|
*
* An example of blacklisting a USB device, in case of errors caused by reading SMART data:
* |[
* ATTRS{idVendor}=="152d", ATTRS{idProduct}=="2329", ENV{ID_ATA_SMART_ACCESS}="none"
* ]|
*/

/**
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