Bluetooth Implementation Considerations

Windows CE .NET

The following considerations should be taken into account when implementing this technology:

  • Only one Bluetooth controller is supported.
  • L2CAP links over unreliable channels are not supported.
  • Flush Time-out is not supported by L2CAP. Upper layers are supposed to fail the connection when Flush Time-out is not set to the default value or negotiated down to the default value.
  • L2CAP does not support dynamic reconfiguration, which allows the system to enter CONFIG mode when a connection has already been opened.

The following table shows the Sysgen variables that control the listed Bluetooth features.

Sysgen variable Feature
SYSGEN_BTH_GATEWAY When this variable is set, the Bluetooth Gateway Configuration Utility feature is included in the OS image. This feature is an application that provides a sample configuration of Bluetooth as a LAN Access Point (Gateway). It is available only in headless devices.
SYSGEN_BTH_MODEM When this variable is set, the Bluetooth Modem Gateway Support feature is included in the OS image. A Microsoft® Windows® CE–based device can use this feature to look like a dial up modem to other Bluetooth-enabled devices.
SYSGEN_BTH_CSR_ONLY When this variable is set, the Built-in CSR Chipset Support feature is included in the OS image. This feature excludes all chipset support except for CSR in the image.

See Also

Bluetooth Overview


 Last updated on Friday, April 09, 2004

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