Hi Marcel, Yup i do have an entry (see below), and i've managed to get it to load, but by hacking the hci_usb.c to remove the lines /* Check number of endpoints */ if (intf->altsetting[0].desc.bNumEndpoints < 3) return -EIO; It looks like since there's multiple interface descriptors for the device (see attachment), and bNumEndpoints is only equal to 3 in one of them, then the test fails and returns EIO. I don't know if this check should be removed altogether since we subsequently iterate thru all the interfaces to get the endpoints. hciconfig shows me 2 interfaces - is this correct ? # hciconfig hci0: Type: USB BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0 DOWN RX bytes:0 acl:0 sco:0 events:0 errors:0 TX bytes:0 acl:0 sco:0 commands:0 errors:0 hci1: Type: USB BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0 DOWN RX bytes:0 acl:0 sco:0 events:0 errors:0 TX bytes:0 acl:0 sco:0 commands:0 errors:0 T: Bus=07 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(unk. ) Sub=01 Prot=01 MxPS= 8 #Cfgs= 1 P: Vendor=0400 ProdID=0807 Rev= 1.00 C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=00(>ifc ) Sub=00 Prot=00 Driver=hci_usb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms -------- Original Message -------- Subject: Re: [Bluez-users] NEC usb bluetooth support Date: Tue, 16 Dec 2003 20:06:24 +0100 From: Marcel Holtmann To: Mitch CC: BlueZ Mailing List References: <3FDF2875.9030706@0Bits.COM> Hi Mitch, > Just bought one of these, but doesn't seem to work on 2.6.0-test11. > syslog spews out: > > Bluetooth: HCI socket layer initialized > Bluetooth: HCI USB driver ver 2.4 > hci_usb: probe of 7-2:1.1 failed with error -5 > drivers/usb/core/usb.c: registered new driver hci_usb > > Tried adding the device id's to hci_usb.c in vain. > > Any ideas to get this beast working ? your dongle should work out of the box. Have you tried 2.4.23? Do you have a /proc/bus/usb/devices for us? It should show you something like this T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 7 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0a12 ProdID=0001 C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms Regards Marcel