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authorJohan Hedberg <johan.hedberg@intel.com>2015-08-30 21:47:21 +0300
committerMarcel Holtmann <marcel@holtmann.org>2015-09-17 13:20:00 +0200
commit6cafcd959599d91d0fa4615feae7f1e7ab407c4b (patch)
tree2c77545c81b2eac6df5d2b4127e29520c48f329f /include
parente81be90bdafa48389028249c357a4efcd0fdce53 (diff)
Bluetooth: btusb: Detect new kind of counterfeit CSR controllers
Controllers claiming to be CSR with LMP subversion 0x0c5c don't actually seem to be authentic CSR controllers. They also don't have their USB bcdDevice value matching the LMP subversion like all other CSR controllers: HCI: > HCI Event: Command Complete (0x0e) plen 12 Read Local Version Information (0x04|0x0001) ncmd 1 Status: Success (0x00) HCI version: Bluetooth 2.0 (0x03) - Revision 3164 (0x0c5c) LMP version: Bluetooth 2.0 (0x03) - Subversion 3164 (0x0c5c) Manufacturer: Cambridge Silicon Radio (10) USB: T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=16 #Cfgs= 1 P: Vendor=0a12 ProdID=0001 Rev= 1.34 C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 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(wlcon) Sub=01 Prot=01 Driver=btusb 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=e0(wlcon) Sub=01 Prot=01 Driver=btusb 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(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms These controllers also have the HCI_Read_Stored_Link_Key command broken so it's important the right quirk is set for them. Reported-and-tested-by: Rhobison Alves Pereira <rhobison@hotmail.com> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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