Key bouncing

Hi,

I've noticed that if typing quickly on my Apple Bluetooth keyboard I often get additional keypresses. For instance, 'mode' comes out as 'moddeo' sometimes. This only affects me when my DLink dongle is in HCI mode -- I get no issues when in HID mode. I've seen this in kernels 2.6.9 and 2.6.10-rc1.

% hidd --show
00:50:F2:E2:A4:B1 HID Boot Device [045e:007c] connected [boot-protocol] 00:0A:95:39:0F:9E HID Boot Device [05ac:0209] connected [boot-protocol]

% hciconfig -a
hci0: Type: USB

        BD Address: 00:0F:3D:38:D3:A8 ACL MTU: 192:8  SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:118698 acl:7768 sco:0 events:201 errors:0
        TX bytes:1309 acl:42 sco:0 commands:20 errors:0
        Features: 0xff 0xff 0x8f 0x78 0x18 0x18 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'saag-0'
        Class: 0x100100
        Service Classes: Object Transfer
        Device Class: Computer, Uncategorized
        HCI Ver: 1.2 (0x2) HCI Rev: 0x4d9 LMP Ver: 1.2 (0x2) LMP Subver:

0x4d9
Manufacturer: Cambridge Silicon Radio (10)

-- Edd

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Hi Edd,

I have seen this only in boot protocol mode. If you apply the -mh patch and use report protocol mode this should go away. However in the HID mode the D-Link also uses the boot protocol and so there must be a way to avoid it. At the moment I have no idea how to do this, but every patch is welcome.

Regards

Marcel

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I was just about to ask about this same issue. I don't recall when it started but certain key combinations give the undesired effect.

Trying to type "cd " too quickly always comes out "cdd c" for example.

I have a D-Link adaptor as well.

What do you mean by HID mode?

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