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