From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [Bluez-users] Bluez USB Driver From: Marcel Holtmann To: taylor Cc: BlueZ Mailing List In-Reply-To: <00cb01c488ba$82fc6490$df0618ac@USI08844> References: <00cb01c488ba$82fc6490$df0618ac@USI08844> Content-Type: text/plain Message-Id: <1093334466.26717.55.camel@pegasus> Mime-Version: 1.0 Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 24 Aug 2004 10:01:06 +0200 Hi Taylor, > Recently, I spend a little time to study the Bluez Driver. Attached > file is my notes. Hope this is useful for others. I can't do anything useful with a file from a Microsoft Office application ;) > But I have one question about the Bluez USB driver for Kernle 2.4.26 > and 2.6.5. > > Kernel 2.4.26: > /linux/src/driver/usb/bluetooth.c > /linux/src/driver/bluetooth/hci_usb.c > > Kernel 2.6.5: > /linux/src/driver/bluetooth/hci_usb.c > Why are there two USB drivers for 2.4.26? > Because, the /linux/src/driver/bluetooth/hci_usb.c have registered > with USB core and get the hci dev. I couldn't know the purpose > of /linux/src/driver/usb/blueotooth.c ? Do someone know the reason? the bluetooth.o from 2.4 and the bluetty.ko driver from 2.6 are for transforming the H:2 transport protocol into a H:4 transport protocol. Both of them are part of the kernel for allowing the use of a Bluetooth stack that support only H:4. An example for such a stack is the OpenBT from Axis. It is impossible to select both drivers at the same time and if you activate the Bluetooth subsystem you will use hci_usb.ko which is the default configuration that is shipped by every distribtuion at the moment. For more information take a look at the mailing list archives of the BlueZ and USB mailing lists. Regards Marcel ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users