driver-api/surface_aggregator/overview.rst

1 .. SPDX-License-Identifier: GPL-2.0+
10 its responsibilities and feature-set have since been expanded significantly
23 sensors (e.g. skin temperature) and cooling/performance-mode setting to the
27 and 2 it is required for keyboard HID input. This HID subsystem has been
32 While features have not changed much on a coarse level since the 5th
36 SAN), translating ACPI generic serial bus write-/read-accesses to SAM
40 harder to discover and requiring us to hard-code a sort of device registry.
41 Due to this, a SSAM bus and subsystem with client devices
50 communicate via HID, specifically using a HID-over-I2C device, whereas on
55 SAM-over-SSH and SAM-over-HID.
57 Currently, this subsystem only supports SAM-over-SSH. The SSH communication
64 ------------------
67 communication interface for SAM on 5th- and all later-generation Surface
68 devices. On the highest level, communication can be separated into two main
76 See Documentation/driver-api/surface_aggregator/ssh.rst for a
78 Documentation/driver-api/surface_aggregator/internal.rst for an