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Editorial Team
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Asked: 2026-05-21T00:27:51+00:00

I have two Bluetooth devices and I’m trying to make two rfcomm connections, one

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I have two Bluetooth devices and I’m trying to make two rfcomm connections, one connection per device.

I’m using bluez rfcomm socket

addr.rc_family = AF_BLUETOOTH;
addr.rc_channel = (uint8_t) 1;
str2ba( dest, &addr.rc_bdaddr );

// connect to server
s = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);

// set disconnect timeout to 2sec
struct timeval tv;
tv.tv_sec = 2;
setsockopt(s, SOL_SOCKET, SO_RCVTIMEO,(struct timeval *)&tv,sizeof(struct timeval));

// make connection
status = connect(s, (struct sockaddr *)&addr, sizeof(addr));

How I select a device to make the connection?

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1 Answer

  1. Editorial Team

    you cannot do this, the bluez bluetooth stack will work on only one dongle i.e local bluetooth device at any time.

    To be able to have a singe instance of the bluetooth stack control 2 bluetooth local dongles will be a big change to the bluez stack.

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