Bluez and more than two USB dongles in one HUB
Petr Palacký <[email protected]>
| Newsgroups | gmane.linux.bluez.user |
|---|---|
| Organization | Coduco, s.r.o. |
| Message-ID | <[email protected]> |
Hi all, I have problem with using more than two USB dongles in one USB port using 4 (and more)-port USB-HUB (with or without power supply)... I have many USB dongles for testing purposes, the same with USB HUBs. If I connect two dongles into HUB everything works well, but if I want to attach third (and more) they will not be activated via bluez stack... # hciconfig hciX up Can't activate device: Input/output error This USB dongle is visible using `hciconfig` but its state is everytime "DOWN" and cannot be changed to "UP". I can successfully connect only two USB bluetooth dongles into one USB HUB. I can attach many more USB devices into one HUB (like printer, phone, modem, flash, next USB-HUBs in tree...). All USB devices works well but only two USB bluetooth dongles can operate in one HUB at the same time... I'm using latest stable kernels and bluez on top of Gentoo, Debian/Ubuntu and Knoppix with PCs like AMD-64b, AMD-32b, Intel P4, Intel Core, VIA EPIA - this problem applies in all configurations. Where can be problem, what is solution? Thank for all ideas -- Best regards Petr Palacky Coduco, s.r.o. Velflikova 6 16000 Praha 6 Tel./fax: +420 224 310 732 -- Outgoing message is virus free because we use Linux (http://www.linux.org) version 2.6.20-gentoo-r8 / Gentoo Linux ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/