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SubjectRe: HID OOPS running hid2hci on logitech diNovo dongle
On Sun, 25 Mar 2007, CIJOML wrote:

> in combination of kernel 2.6.20-mh1 and hid2hci from bluez-utils-3.9 I
> am getting following OOPS:
> BUG: at drivers/hid/hid-core.c:785 implement()
> [<c027a9c3>] hid_output_report+0x213/0x2be
> [<fcaf73fb>] hid_submit_ctrl+0x52/0x1bc [usbhid]
> [<fcaf76b9>] usbhid_submit_report+0x154/0x187 [usbhid]
> [<fcaf7970>] usbhid_init_reports+0x60/0xbb [usbhid]
> [<fcaf917d>] hiddev_ioctl+0x361/0x8e7 [usbhid]
> [<c01b4dd1>] avc_has_perm+0x4e/0x58
> [<c01b5595>] inode_has_perm+0x5b/0x63
> [<c0148652>] __handle_mm_fault+0x2c3/0x7b1
> [<c01b5626>] file_has_perm+0x89/0x91
> [<c0161158>] do_ioctl+0x4c/0x62
> [<c01613aa>] vfs_ioctl+0x23c/0x24f
> [<c0161409>] sys_ioctl+0x4c/0x67
> [<c0102cc8>] syscall_call+0x7/0xb
> [<c02d0033>] __sched_text_start+0x43/0x546

This is known bug that happens with recent Logitech dongles. Please see and

The problem here is that Logitech probably changed the way how the dongle
is switched from HID to HCI mode, and bluez-utils don't support it (and
send report that is not compliant with report descriptor of the dongle,
which triggers this warning).

Are you able to verify whether this could be possibly caused solely by
newer versions of bluez-utils, as Amedee stated in some of the threads

Jiri Kosina
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