Ubuntu
linux package

  1. Bug #1065400
  2. Comment #181

Comment 181 for bug 1065400

Revision history for this message
Ian Mackinnon (imackinnon) wrote :

I have a Dell/Broadcom 413c:8143 device and the patchram is apparently still not being applied for me in Ubuntu 20.04, kernel `5.4.0-70-generic`.

I see that the following struct was added in early 2017:

 /* Dell Computer - Broadcom based */
 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
   .driver_info = BTUSB_BCM_PATCHRAM },

Commit diffs:

https://github.com/torvalds/linux/commit/fdfddc601713d4ed564b0bd25b29415bd622020a

https://kernel.ubuntu.com/git/ubuntu/ubuntu-zesty.git/diff/drivers/bluetooth/btusb.c?h=Ubuntu-4.10.0-14.16&id=9f8d1a6f221b33b294032c15e4739a8a9076aaec

However, an earlier struct some ten items above appears to be blocking the addition from taking effect:

 { USB_DEVICE(0x413c, 0x8197) },

With the stock Ubuntu module HSP/HFP does not work for me, but if I remove the `USB_DEVICE` item, leaving the `USB_VENDOR_AND_INTERFACE_INFO` item, and recompile, the patchram is applied and HSP/HFP works.

Might it be necessary to remove the previous `USB_DEVICE` item from the module source?