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authorMaximilian Luz <luzmaximilian@gmail.com>2022-05-27 05:34:43 +0300
committerHans de Goede <hdegoede@redhat.com>2022-06-13 18:25:08 +0300
commit25e2ca7301bd3ca5a63a6be41d729eb42202bc21 (patch)
treea324264149fb0d76f36fc18c7dcf3a4a0a9cbbdc /include/linux/surface_aggregator
parent2c2c3a07086c910719dc7135f1d871d2c6c022fc (diff)
downloadlinux-25e2ca7301bd3ca5a63a6be41d729eb42202bc21.tar.xz
platform/surface: aggregator: Add comment for KIP subsystem category
The KIP subsystem (full name unknown, abbreviation has been obtained through reverse engineering) handles detachable peripherals such as the keyboard cover on the Surface Pro X and Surface Pro 8. It is currently not entirely clear what this subsystem entails, but at the very least it provides event notifications for when the keyboard cover on the Surface Pro X and Surface Pro 8 have been detached or re-attached, as well as the state that the keyboard cover is currently in (e.g. folded-back, folded laptop-like, closed, etc.). Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20220527023447.2460025-9-luzmaximilian@gmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'include/linux/surface_aggregator')
-rw-r--r--include/linux/surface_aggregator/serial_hub.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/surface_aggregator/serial_hub.h b/include/linux/surface_aggregator/serial_hub.h
index c3de43edcffa..26b95ec12733 100644
--- a/include/linux/surface_aggregator/serial_hub.h
+++ b/include/linux/surface_aggregator/serial_hub.h
@@ -306,7 +306,7 @@ enum ssam_ssh_tc {
SSAM_SSH_TC_LPC = 0x0b,
SSAM_SSH_TC_TCL = 0x0c,
SSAM_SSH_TC_SFL = 0x0d,
- SSAM_SSH_TC_KIP = 0x0e,
+ SSAM_SSH_TC_KIP = 0x0e, /* Manages detachable peripherals (Pro X/8 keyboard cover) */
SSAM_SSH_TC_EXT = 0x0f,
SSAM_SSH_TC_BLD = 0x10,
SSAM_SSH_TC_BAS = 0x11, /* Detachment system (Surface Book 2/3). */