Here is the first version of the proposal to export SoC related information to user-space through sysFS interface. This serie is to continue what has been discussed on the "socinfo" thread created by Eduardo Valentin: https://lkml.org/lkml/2010/5/11/364 The first patch introduces the common part, which provides an interface to the platform to register its name, and exports platform-defined IDs to user-space. The IDs strings can be provided in two ways: either with a pointer to the string, or by a callback returning the string. The second patch is given as example for the ux500 architecture. It registers with the machine name "DB8500", and exports 3 informations (SoC unique ID, sili con revision and silicon process). Here is the output for DB8500: root@ME:/sys/devices/system/soc ls -l -r--r--r-- 1 root root 4096 Jan 11 02:43 mach_name -r--r--r-- 1 root root 4096 Jan 11 02:43 process -r--r--r-- 1 root root 4096 Jan 11 02:43 revision -r--r--r-- 1 root root 4096 Jan 11 02:43 soc_id root@ME:/sys/devices/system/soc cat mach_name DB8500 root@ME:/sys/devices/system/soc cat process Standard root@ME:/sys/devices/system/soc cat revision 2.0 root@ME:/sys/devices/system/soc cat soc_id 2ba07ce9e5835d6185321e9577462ef2ea2129cf Any comments are welcome. Note that I will be off from 13th to 21th of March. Regards, Maxime ------------------------------------------------------------------------------- Maxime Coquelin (2): Export SoC info through sysfs ux500: Export U8500 SoC info through sysfs arch/arm/mach-ux500/id.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/base/Kconfig | 4 ++ drivers/base/Makefile | 1 + drivers/base/soc.c | 88 ++++++++++++++++++++++++++++++++++++++++++ include/linux/sys_soc.h | 33 ++++++++++++++++ 5 files changed, 222 insertions(+), 0 deletions(-) create mode 100644 drivers/base/soc.c create mode 100644 include/linux/sys_soc.h -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
