[Interest] Rfcomm QBluetoothSocket Speed
jlk2144 at gmail.com
Wed Nov 20 19:07:23 CET 2019
Wondering how to change the speed of an rfcomm QBluetoothSocket. When I
connect to a QBluetoothSocket on another computer and transmit data, I
get a receive rate on the other computer of about 1 kilobyte/s (9600 Baud?).
I investigated a little. After the connection is made, there is a new
socket on the client computer labeled QDBusConection with protocol
RFCOMM, and another one with protocol: HCI. Both have (0,9) in the
DEVICE field of the lsof command.
I know it's possible to transmit data at higher speeds over rfcomm,
because I can demonstrate it using the Bluez program rfcomm. It looks
like rfcomm also creates an RFCOMM socket and in addition a new device
(dev/rfcomm1). You can increase the connection speed by setting the baud
rate on the device.
I guess next step would be to check the source code for rfcomm command
vs qbluetooth library, but I was hoping someone would have a quicker
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