9 - Properties
eDynamo| Secure Card Reader Authenticator | Programmer’s Manual (COMMANDS)
Page 159 of 245 (
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Property 0x6F - Active USB Port (Dual USB Ports Only)
Property ID:
0x6F
Property Type: Byte
Length: 1 byte
Get Property: Yes
Set Property:
Yes
Default Value: 0x00
This property controls which USB port the device uses for bidirectional data communication with the
host, on devices with more than one USB port where only one USB port can be active at a time. It is
intended to be set during manufacturing, with the value depending on whether the device has been
purchased for handheld use or for permanently mounted use (such as at a point of sale).
When the property is set to 0x00, the device’s USB interface listens to and transmits data to the cable
/ plug USB connector.
When the property is set to 0x01, the device’s USB interface listens to and transmits data to the dock /
stand USB connector. In this mode, when the device is placed on the dock / stand and the stand is
connected to a USB host with an active data connection (not a charger), the device temporarily turns
off all Bluetooth LE functions automatically until the device is removed from the stand.
This property is stored in non-volatile memory, so it persists when the device is power cycled. When this
property is changed, the device must be reset (see
) or powered off for at
least 30 seconds, then powered on, before the changes will take effect.
Example Set Request (Hex)
Cmd Num
Data Len
Property ID
Property Value
01
02
6F
00
Example Set Response (Hex)
Result Code
Data Len
Data
00
00
Example Get Request (Hex)
Cmd Num
Data Len
Property ID
00
01
6F
Example Get Response (Hex)
Result Code
Data Len
Property Value
00
01
00