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Ondra Žižka
Asked: 2018-03-13 10:27:57 +0800 CST

What is `MultiProfile = multiple` in /etc/bluetooth/main.conf?

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I ham troubleshooting some Bluetooth issues and spotted this in /etc/bluetooth/main.conf:

# Enables Multi Profile Specification support. This allows to specify if
# system supports only Multiple Profiles Single Device (MPSD) configuration
# or both Multiple Profiles Single Device (MPSD) and Multiple Profiles Multiple
# Devices (MPMD) configurations.
# Possible values: "off", "single", "multiple"
MultiProfile = multiple

What is that? I found some references to multiple profiles in the Bluetooth spec but I am not sure what this exactly does.

The only place I found it at is the source: https://git.merproject.org/mer-core/bluez/commit/e9f873b1c1e2f102ee5353a06e7fede161304c7d which didn't help me much :)

bluetooth 17.10

1 Answers

  1. Best Answer

    MultiProfile = x effectively declares if and what degree of MPS support your device will support. The comments in your quote say it all.

    From the specification:

    The Multi-Profile Specification (MPS) specifies the behavior for Bluetooth devices supporting multiple Bluetooth profiles.

    Any device claiming support for this profile shall fulfill all applicable requirements defined in this specification in addition to the requirements defined in each individual Bluetooth profile it supports.

    See the link corresponding with MPS (Multi-Profile Service) here for more details of what MPS is.

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