linux-kernel - Re: Kernel oops with bluetooth usb dongle

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Date:	Tue, 26 Feb 2008 15:49:31 +0000
From:	kelk1@...cast.net (Quel Qun)
To:	Marcel Holtmann <marcel@...tmann.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	David Woodhouse <dwmw2@...radead.org>,
	Dave Young <hidave.darkstar@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Kosina <jkosina@...e.cz>, Ingo Molnar <mingo@...e.hu>
Subject: Re: Kernel oops with bluetooth usb dongle

 -------------- Original message ----------------------
From: Marcel Holtmann <marcel@...tmann.org>
> Hi Quel,
> 
> > Bad news: I still cannot use the device.
> >
> > hcitool inq, hcitool scan, hcitool name <btaddr> and hcitool info  
> > <btaddr>
> > commands work.
> >
> > hcitool cc <btaddr>, sdptool <btaddr>, rfcomm connect command fail,  
> > most of them
> > with a 'Connection reset by peer' error.
> 
> what does "hciconfig hci0 version" tell you about your device? Some of  
> the none major based Bluetooth chips are broken and might need an  
> extra tweak within the USB driver.
> 

Marcel,

# hciconfig hci0 version
hci0:	Type: USB
	BD Address: 00:03:0D:00:15:47 ACL MTU: 192:8 SCO MTU: 64:8
	HCI Ver: 1.1 (0x1) HCI Rev: 0xbc LMP Ver: 1.1 (0x1) LMP Subver: 0xbc
	Manufacturer: Cambridge Silicon Radio (10)

# lsusb | grep Cambridge
Bus 003 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

This device works fine in 2.6.23.1 and got broken circa 2.6.24 rcs.

Thank you,
--
kk1
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