2006-01-18 13:44:53

by Herman Meerlo

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Subject: [Bluez-users] Dongle order and maximum

Hi Guys,

I have two questions:

1. What is the maximum number of USB dongles that I can connect (if
there is a maximum at all)?
2. Is the ordering of the device ID's of the dongles guaranteed? I.e.
when I reboot the system does hci0 always point to the same device or is
the ordering random?

Regards,
Herman Meerlo


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2006-01-18 13:54:06

by Marcel Holtmann

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Subject: Re: [Bluez-users] Dongle order and maximum

Hi Herman,

> 1. What is the maximum number of USB dongles that I can connect (if
> there is a maximum at all)?

Inside the kernel there is no real limitation. Except that the internal
ID is a uint16. The underlaying bus (USB etc.) is more of a limit.

>>From the userspace tools we support 16 devices.

> 2. Is the ordering of the device ID's of the dongles guaranteed? I.e.
> when I reboot the system does hci0 always point to the same device or is
> the ordering random?

The order is random. You need to identify the devices with their
BD_ADDR.

Regards

Marcel




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