lsusb: Bus 001 Device 041: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Bus 001 Device 040: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) These are definitely plain USB devices. There is no /dev/ttyUSBxx like you would get with the FTDI USB->Serial converters. I've checked over dmesg and the messages (of which there are many since I have eight of these devices) says they are USB. I don't want to become sidetracked from the issue though. Is there anyway to debug this issue without using l2test or any other upperlayers program? The issue I have seen was at the HCI level remember so I'm thinking introducing the upperlayers is going to make things unnecessarily complicated. Cheers. On Tue, May 17, 2011 at 12:50 PM, Anderson Lizardo <anderson.lizardo@xxxxxxxxxxxxx> wrote: > Hi, > > On Tue, May 17, 2011 at 3:13 AM, Eponymous - <the.epon@xxxxxxxxx> wrote: >> The chips are CSR Bluecores. In order to get upperlayers access rather >> than HCI over USB you have to configure a key in the firmware. >> >> As soon as I enable upperlayers access the devices disappear from hciconfig. > > As I said, there are various development/prototype devices out there > that use UART (usually CDC ACM or FTDI over USB) transport instead of > "plain" USB. If you post the relevant lines from "dmesg" and "lsusb" > somewhere (after you configure the firmware key), we might be able to > identify the transport. > > For UART, you need to use hciattach on a e.g. /dev/ttyUSBX device > created when plugging the device. > > HTH, > -- > Anderson Lizardo > Instituto Nokia de Tecnologia - INdT > Manaus - Brazil > -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html