The host uses this command to specify which notifications the device should send on each of its available interfaces. By default, the device sends notifications to the host on all interfaces.
1
Sequence of events
The sequence of events is as follows:
The host constructs the command request in the format below.
The host sends the command request to the device.
The device sends a response in the format below to the host.
The device immediately begins routing notifications per the request.
If the device restarts or loses power, the device resets its notification subscriptions to defaults, and the host must call this command again to change them.
Tag
Len
Value / Description
Typ
Req
Default
Tag
Len
Value / Description
Typ
Req
Default
1F02 = Set Notification Subscriptions - Command 0x1F02
81
01
Subscribe
0x00 = Unsubscribe
0x01 = Subscribe
B
O
0x01
82
01
Notifications Affected
0x00 = Only subscribe or unsubscribe to notification messages in the Notification Message ID List parameter
0x01 = Subscribe or unsubscribe to all notifications
B
O
0x01
83
var
Notification Message ID List List of two-byte Notification Message IDs (MSB first) from section 7 Notifications to be subscribed / unsubscribed by this command. For example, to subscribe to Notification 0x0105 - Transaction Operation Complete on the interface being used to send this command, the host would include 0x0105 as two bytes in the list. The device ignores any Notification Message IDs in the list that do not exist.
B
O
Null
A4
var
Interfaces
List of interfaces this command should change the subscription settings for. If the host does not specify any interfaces here, the command applies only to the interface the host is using to send the command.
B
)
Null
/81
00
Apply changes to the USB interface
O
/82
00
Apply changes to the WLAN interface
O
/83
00
Apply changes to the Bluetooth® LE interface
O
/84
00
Apply changes to the UART interface
O
End of any wrappers, at minimum including Request Message
1F02 = Set Notification Subscriptions - Command 0x1F02
No parameters.
End of any wrappers, at minimum including Response Message
Beginning of any wrappers, at minimum including Request Message
Beginning of any wrappers, at minimum including Response Message
Set Notification Subscriptions - Request Data for Command 0x1F02
Set Notification Subscriptions - Response Data for Command 0x1F02