Re: [Bluez-users] Apple wireless keyboard [hid2hci]

["Phil Endecott" <spam_from_bluez_users@chezphil.org>]

A couple of weeks ago I asked:
> Dear Bluetooth experts,
>
> I think I am probably the bazillionth person to ask here about how to
> get the Apple wireless keyboard to work properly with Linux.
[snip]
> Firstly, I understand that some USB Bluetooth dongles have a "HID Mode"
> where they appear as USB HID devices and all of the Bluetooth
> complexity is avoided.
[snip]

I've acquired a second USB bluetooth dongle, and this one does have a
CSR chip:

$ lsusb|grep -i bluetooth
Bus 003 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth
Dongle (HCI mode)

I've got this working in normal Bluetooth mode in the same way that I
did with the other dongle and it works.  But I have failed to put it
into HID mode.  Am I doing the right thing?  I've tried this either
with the keyboard connected in HCI mode or with it not connected, with
the bluez daemons running or not running, and in all cases I get:

# hid2hci --tohid
Switching device 0a12:0001 to HID mode failed (Broken pipe)

strace shows this:

open("/dev/bus/usb/003/002", O_RDWR)    = 3
ioctl(3, USBDEVFS_CONTROL, 0xbfa9f64c)  = -1 EPIPE (Broken pipe)

Does anyone have any clues?  According to the kernel's
Documentation/usb/error-codes.txt, EPIPE means that the endpoint is stalled.


Cheers,  Phil.







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