diff --git a/doc/mgmt-api.txt b/doc/mgmt-api.txt
index eafa2ef..71e9914 100644
--- a/doc/mgmt-api.txt
+++ b/doc/mgmt-api.txt
or failure.
+Set Device ID Command
+=====================
+
+ Command Code: 0x0028
+ Controller Index: <controller id>
+ Command Parameters: Source (2 Octets)
+ Vendor (2 Octets)
+ Product (2 Octets)
+ Version (2 Octets)
+ Return Parameters:
+
+ The Source parameter selects the organization that assigned the
+ Vendor parameter:
+
+ 0x0000 Disable Device ID
+ 0x0001 Bluetooth SIG
+ 0x0002 USB Implementer’s Forum
+
+ The information are put into the EIR data. If the controller does
+ not support EIR or if SSP is disabled, this command will still
+ succeed. The information are stored for later use and will survive
+ toggling SSP on and off.
+
+ This command generates a Command Complete event on success or
+ a Command Status event on failure.
+
Command Complete Event
======================