ORG.BLUEZ...ESCRIPTOR(5) Linux System Administration ORG.BLUEZ...ESCRIPTOR(5)
NAME
org.bluez.GattDescriptor - BlueZ D-Bus GattDescriptor API documentation
DESCRIPTION
GATT local/server and remote/client descriptor attribute representation
share the same high-level D-Bus API.
Local/Server refers to GATT based descriptors exported by a plugin or an
external application.
Remote/Client refers to GATT descriptors exported by the peer.
INTERFACE
Client
Service
org.bluez
Interface
org.bluez.GattDescriptor1
Object path
[variable prefix]/{hci0,hci1,...}/dev_XX_XX_XX_XX_XX_XX/ser-
viceXX/charYYYY/descriptorZZZ
Server
Service
unique name
Interface
org.bluez.GattDescriptor1
Object path
freely definable
Methods
array{byte} ReadValue(dict flags)
Issues a request to read the value of the descriptor and returns the
value if the operation was successful.
Possible options:
uint16_t offset
Read start offset in bytes.
object device (server only)
Device object.
string link
Link type (Server only).
Possible values:
"BR/EDR"
"LE"
Possible Errors:
org.bluez.Error.Failed
org.bluez.Error.InProgress
org.bluez.Error.NotPermitted
org.bluez.Error.NotAuthorized
org.bluez.Error.NotSupported
void WriteValue(array{byte} value, dict flags)
Issues a request to write the value of the descriptor.
Possible flags:
uint16 offset
Write start offset in bytes.
uint16 mtu
Exchanged MTU (Server only).
object device
Device path (Server only).
string link
Link type (Server only).
Possible values:
"BR/EDR"
"LE"
boolean prepare-authorize
True if prepare authorization request.
Possible Errors:
org.bluez.Error.Failed
org.bluez.Error.InProgress
org.bluez.Error.NotPermitted
org.bluez.Error.InvalidValueLength
org.bluez.Error.NotAuthorized
org.bluez.Error.NotSupported
org.bluez.Error.ImproperlyConfigured
Properties
string UUID [read-only]
128-bit descriptor UUID.
object Characteristic [read-only]
Object path of the GATT characteristic the descriptor belongs to.
array{byte} Value [read-only, optional]
The cached value of the descriptor. This property gets updated only
after a successful read request, upon which a PropertiesChanged sig-
nal will be emitted.
array{string} Flags [read-only]
Defines how the descriptor value can be used.
Possible values:
"read"
"write"
"encrypt-read"
"encrypt-write"
"encrypt-authenticated-read"
"encrypt-authenticated-write"
"secure-read" (Server Only)
"secure-write" (Server Only)
"authorize"
uint16 Handle [read-only] (Client Only)
Descriptor handle.
uint16 Handle [read-write, optional] (Server Only)
Descriptor handle. When available in the server it would attempt to
use to allocate into the database which may fail, to auto allocate
the value 0x0000 shall be used which will cause the allocated handle
to be set once registered.
BlueZ October 2023 ORG.BLUEZ...ESCRIPTOR(5)
Generated by dwww version 1.16 on Sat Oct 3 07:34:37 CEST 2026.