mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-05 20:24:09 +08:00
119a3cb6d6
The EC is in charge of controlling the keyboard backlight on the Wilco platform. We expose a standard LED class device named platform::kbd_backlight. Since the EC will never change the backlight level of its own accord, we don't need to implement a brightness_get() method. Signed-off-by: Nick Crews <ncrews@chromium.org> Signed-off-by: Daniel Campello <campello@chromium.org> Reviewed-by: Daniel Campello <campello@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
config WILCO_EC
|
|
tristate "ChromeOS Wilco Embedded Controller"
|
|
depends on ACPI && X86 && CROS_EC_LPC && LEDS_CLASS
|
|
help
|
|
If you say Y here, you get support for talking to the ChromeOS
|
|
Wilco EC over an eSPI bus. This uses a simple byte-level protocol
|
|
with a checksum.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called wilco_ec.
|
|
|
|
config WILCO_EC_DEBUGFS
|
|
tristate "Enable raw access to EC via debugfs"
|
|
depends on WILCO_EC
|
|
help
|
|
If you say Y here, you get support for sending raw commands to
|
|
the Wilco EC via debugfs. These commands do not do any byte
|
|
manipulation and allow for testing arbitrary commands. This
|
|
interface is intended for debug only and will not be present
|
|
on production devices.
|
|
|
|
config WILCO_EC_EVENTS
|
|
tristate "Enable event forwarding from EC to userspace"
|
|
depends on WILCO_EC
|
|
help
|
|
If you say Y here, you get support for the EC to send events
|
|
(such as power state changes) to userspace. The EC sends the events
|
|
over ACPI, and a driver queues up the events to be read by a
|
|
userspace daemon from /dev/wilco_event using read() and poll().
|
|
|
|
config WILCO_EC_TELEMETRY
|
|
tristate "Enable querying telemetry data from EC"
|
|
depends on WILCO_EC
|
|
help
|
|
If you say Y here, you get support to query EC telemetry data from
|
|
/dev/wilco_telem0 using write() and then read().
|