Based on kernel version 3.9. Page generated on 2013-05-02 22:53 EST.
1 What: /sys/devices/socX 2 Date: January 2012 3 contact: Lee Jones <lee.jones@linaro.org> 4 Description: 5 The /sys/devices/ directory contains a sub-directory for each 6 System-on-Chip (SoC) device on a running platform. Information 7 regarding each SoC can be obtained by reading sysfs files. This 8 functionality is only available if implemented by the platform. 9 10 The directory created for each SoC will also house information 11 about devices which are commonly contained in /sys/devices/platform. 12 It has been agreed that if an SoC device exists, its supported 13 devices would be better suited to appear as children of that SoC. 14 15 What: /sys/devices/socX/machine 16 Date: January 2012 17 contact: Lee Jones <lee.jones@linaro.org> 18 Description: 19 Read-only attribute common to all SoCs. Contains the SoC machine 20 name (e.g. Ux500). 21 22 What: /sys/devices/socX/family 23 Date: January 2012 24 contact: Lee Jones <lee.jones@linaro.org> 25 Description: 26 Read-only attribute common to all SoCs. Contains SoC family name 27 (e.g. DB8500). 28 29 What: /sys/devices/socX/soc_id 30 Date: January 2012 31 contact: Lee Jones <lee.jones@linaro.org> 32 Description: 33 Read-only attribute supported by most SoCs. In the case of 34 ST-Ericsson's chips this contains the SoC serial number. 35 36 What: /sys/devices/socX/revision 37 Date: January 2012 38 contact: Lee Jones <lee.jones@linaro.org> 39 Description: 40 Read-only attribute supported by most SoCs. Contains the SoC's 41 manufacturing revision number. 42 43 What: /sys/devices/socX/process 44 Date: January 2012 45 contact: Lee Jones <lee.jones@linaro.org> 46 Description: 47 Read-only attribute supported ST-Ericsson's silicon. Contains the 48 the process by which the silicon chip was manufactured. 49 50 What: /sys/bus/soc 51 Date: January 2012 52 contact: Lee Jones <lee.jones@linaro.org> 53 Description: 54 The /sys/bus/soc/ directory contains the usual sub-folders 55 expected under most buses. /sys/bus/soc/devices is of particular 56 interest, as it contains a symlink for each SoC device found on 57 the system. Each symlink points back into the aforementioned 58 /sys/devices/socX devices.