59 lines
2 KiB
Plaintext
59 lines
2 KiB
Plaintext
|
What: /sys/devices/socX
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
The /sys/devices/ directory contains a sub-directory for each
|
||
|
|
System-on-Chip (SoC) device on a running platform. Information
|
||
|
|
regarding each SoC can be obtained by reading sysfs files. This
|
||
|
|
functionality is only available if implemented by the platform.
|
||
|
|
|
||
|
|
The directory created for each SoC will also house information
|
||
|
|
about devices which are commonly contained in /sys/devices/platform.
|
||
|
|
It has been agreed that if an SoC device exists, its supported
|
||
|
|
devices would be better suited to appear as children of that SoC.
|
||
|
|
|
||
|
|
What: /sys/devices/socX/machine
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
Read-only attribute common to all SoCs. Contains the SoC machine
|
||
|
|
name (e.g. Ux500).
|
||
|
|
|
||
|
|
What: /sys/devices/socX/family
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
Read-only attribute common to all SoCs. Contains SoC family name
|
||
|
|
(e.g. DB8500).
|
||
|
|
|
||
|
|
What: /sys/devices/socX/soc_id
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
Read-only attribute supported by most SoCs. In the case of
|
||
|
|
ST-Ericsson's chips this contains the SoC serial number.
|
||
|
|
|
||
|
|
What: /sys/devices/socX/revision
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
Read-only attribute supported by most SoCs. Contains the SoC's
|
||
|
|
manufacturing revision number.
|
||
|
|
|
||
|
|
What: /sys/devices/socX/process
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
Read-only attribute supported ST-Ericsson's silicon. Contains the
|
||
|
|
the process by which the silicon chip was manufactured.
|
||
|
|
|
||
|
|
What: /sys/bus/soc
|
||
|
|
Date: January 2012
|
||
|
|
contact: Lee Jones <lee.jones@linaro.org>
|
||
|
|
Description:
|
||
|
|
The /sys/bus/soc/ directory contains the usual sub-folders
|
||
|
|
expected under most buses. /sys/bus/soc/devices is of particular
|
||
|
|
interest, as it contains a symlink for each SoC device found on
|
||
|
|
the system. Each symlink points back into the aforementioned
|
||
|
|
/sys/devices/socX devices.
|