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RE: Multiple serial ports for Pocket PC?

Actually, I believe you can access up to the full 7 slave devices with =
RFCOMM. It just happens that Bluetooth installs only 4 devices =
(RFCOMM0-RFCOMM3). You just keep incrementing the minor number on your =
devices and add as many as you want (you just are limited to being =
actively connected to at most 7 devices). Example for Linux:

existing rfcomm device:
  crw-rw-rw-  root  216, 0  rfcomm0

you can add a new rfcomm device with:

  mknod /dev/rfcomm4 c 216 4

There is probably something similar for Windows.

-Paul

-----Original Message-----
From: Tony Havelka [mailto:]
Sent: Monday, April 19, 2004 12:09 PM
To: 
Subject: RE: Multiple serial ports for Pocket PC?

Remember that the Bluetooth SPP Profile will only support a certain =
number of concurrent Serial Connections.  I believe the limit is 4 =
concurrent connections with 7 devices that can be discovered.  This =
means that there is a limit to how many devices you can poll at one =
time. If you want to poll a different device that is not in your list of =
4 active devices, you software has to drop one of the connections and =
pair up with the new device you want to poll.  Keep this in mind when =
selecting Bluetooth as an alternative to wired connections.

-Tony

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