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Groups > linux.kernel > #1251979
| From | Pantelis Antoniou <pantelis.antoniou@konsulko.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v6 4/4] Documentation: ABI: /sys/firmware/devicetree/overlays |
| Date | 2015-10-20 21:20 +0200 |
| Message-ID | <qlKBZ-4yw-31@gated-at.bofh.it> (permalink) |
| References | <qlKBX-4yw-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Documentation ABI entry for overlays sysfs entries. Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> --- .../ABI/testing/sysfs-firmware-devicetree-overlays | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-firmware-devicetree-overlays diff --git a/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays b/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays new file mode 100644 index 0000000..adc4068 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-devicetree-overlays @@ -0,0 +1,40 @@ +What: /sys/firmware/devicetree/overlays/ +Date: October 2015 +Contact: Pantelis Antoniou <pantelis.antoniou@konsulko.com> +Description: + This directory contains the applied device tree overlays of + the running system, as directories of the overlay id. + + enable: The master enable switch, by default is 1, and when + set to 0 it cannot be re-enabled for security reasons. + + The discussion about this switch takes place in: + http://comments.gmane.org/gmane.linux.drivers.devicetree/101871 + + Kees Cook: + "Coming from the perspective of drawing a bright line between + kernel and the root user (which tends to start with disabling + kernel module loading), I would say that there at least needs + to be a high-level one-way "off" switch for the interface so + that systems that have this interface can choose to turn it off + during initial boot, etc." + +What: /sys/firmware/devicetree/overlays/<id> +Date: October 2015 +Contact: Pantelis Antoniou <pantelis.antoniou@konsulko.com> +Description: + Each directory represents an applied overlay, containing + the following attribute files. + + can_remove: The attribute set to 1 means that the overlay can + be removed, while 0 means that the overlay is being + overlapped therefore removal is prohibited. + +What: /sys/firmware/devicetree/overlays/<id>/<fragment-name>/ +Date: October 2015 +Contact: Pantelis Antoniou <pantelis.antoniou@konsulko.com> +Description: + Each of these directories contain information about of the + particular overlay fragment. + + target: The full-path of the target of the fragment -- 1.7.12 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v6 0/4] of: overlay: kobject & sysfs'ation Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-20 21:20 +0200
[PATCH v6 2/4] of: overlay: global sysfs enable attribute Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-20 21:20 +0200
Re: [PATCH v6 2/4] of: overlay: global sysfs enable attribute Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-20 23:10 +0200
Re: [PATCH v6 2/4] of: overlay: global sysfs enable attribute Rob Herring <robherring2@gmail.com> - 2015-10-21 00:00 +0200
Re: [PATCH v6 2/4] of: overlay: global sysfs enable attribute Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-21 10:50 +0200
[PATCH v6 4/4] Documentation: ABI: /sys/firmware/devicetree/overlays Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-20 21:20 +0200
Re: [PATCH v6 4/4] Documentation: ABI: /sys/firmware/devicetree/overlays Rob Herring <robherring2@gmail.com> - 2015-10-20 23:00 +0200
Re: [PATCH v6 4/4] Documentation: ABI: /sys/firmware/devicetree/overlays Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-20 23:10 +0200
Re: [PATCH v6 4/4] Documentation: ABI: /sys/firmware/devicetree/overlays Rob Herring <robherring2@gmail.com> - 2015-10-21 00:10 +0200
[PATCH v6 1/4] of: overlay: kobjectify overlay objects Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-20 21:20 +0200
Re: [PATCH v6 1/4] of: overlay: kobjectify overlay objects Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-20 23:10 +0200
Re: [PATCH v6 1/4] of: overlay: kobjectify overlay objects Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-21 15:30 +0200
Re: [PATCH v6 1/4] of: overlay: kobjectify overlay objects Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-21 17:30 +0200
Re: [PATCH v6 0/4] of: overlay: kobject & sysfs'ation Rob Herring <robherring2@gmail.com> - 2015-10-20 23:10 +0200
Re: [PATCH v6 0/4] of: overlay: kobject & sysfs'ation Pantelis Antoniou <pantelis.antoniou@konsulko.com> - 2015-10-20 23:20 +0200
Re: [PATCH v6 0/4] of: overlay: kobject & sysfs'ation Rob Herring <robherring2@gmail.com> - 2015-10-21 00:00 +0200
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