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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2020-07-28 21:22:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 16:21:13 +0200 |
| commit | 2f79d3d1f7f0885d574811f80c6e0473ab8ef5ab (patch) | |
| tree | a0933f7d965e9b0b2020a2c5f4a9809a5e4acfe7 /Documentation/ABI | |
| parent | MAINTAINERS: Fix maintainer entry for mei driver (diff) | |
| download | linux-2f79d3d1f7f0885d574811f80c6e0473ab8ef5ab.tar.xz linux-2f79d3d1f7f0885d574811f80c6e0473ab8ef5ab.zip | |
mei: add device kind to sysfs
Some of the mei device heads are not generic and have
a specific purpose, we need to announce it to the user space
so it is possible to detect the correct device node via
matching attributes.
Generic heads are marked as 'mei' while special purpose heads
have their own names. Currently we are adding 'itouch' string
for Intel IPTS 1.0, 2.0 devices.
This is done via new sysfs attribute 'kind'.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200728192242.3117779-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-mei | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei index e9dc110650ae..5c52372b43cb 100644 --- a/Documentation/ABI/testing/sysfs-class-mei +++ b/Documentation/ABI/testing/sysfs-class-mei @@ -90,3 +90,16 @@ Description: Display trc status register content The ME FW writes Glitch Detection HW (TRC) status information into trc status register for BIOS and OS to monitor fw health. + +What: /sys/class/mei/meiN/kind +Date: Jul 2020 +KernelVersion: 5.8 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display kind of the device + + Generic devices are marked as "mei" + while special purpose have their own + names. + Available options: + - mei: generic mei device. + - itouch: itouch (ipts) mei device. |