diff mbox series

i3c: document hotjoin sysfs entry

Message ID 20240114225232.140860-1-alexandre.belloni@bootlin.com (mailing list archive)
State Accepted
Headers show
Series i3c: document hotjoin sysfs entry | expand

Commit Message

Alexandre Belloni Jan. 14, 2024, 10:52 p.m. UTC 
From: Alexandre Belloni <alexandre.belloni@bootlin.com>

The hotjoin syfs entry allows to enable or disable Hot-Join on the Current
Controller of the I3C Bus.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 Documentation/ABI/testing/sysfs-bus-i3c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
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Patch

diff --git a/Documentation/ABI/testing/sysfs-bus-i3c b/Documentation/ABI/testing/sysfs-bus-i3c
index e5248fd67a56..c812ab180ff4 100644
--- a/Documentation/ABI/testing/sysfs-bus-i3c
+++ b/Documentation/ABI/testing/sysfs-bus-i3c
@@ -88,6 +88,21 @@  Description:
 		This entry describes the HDRCAP of the master controller
 		driving the bus.
 
+What:		/sys/bus/i3c/devices/i3c-<bus-id>/hotjoin
+KernelVersion:  6.8
+Contact:	linux-i3c@vger.kernel.org
+Description:
+		I3C’s Hot-Join mechanism allows an I3C Device to inform the
+		Active Controller that a newly-joined Target is present on the
+		I3C Bus and is ready to receive a Dynamic Address, in order to
+		become fully functional on the Bus. Hot-Join is used when the
+		Target is mounted on the same I3C bus and remains depowered
+		until needed or until the Target is physically inserted into the
+		I3C bus
+
+		This entry allows to enable or disable Hot-join of the Current
+		Controller driving the bus.
+
 What:		/sys/bus/i3c/devices/i3c-<bus-id>/<bus-id>-<device-pid>
 KernelVersion:  5.0
 Contact:	linux-i3c@vger.kernel.org