From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Mack <zonque@gmail.com>
Subject: Re: Fwd: Support for Roland VG-99 (working code,
 but could use help)
Date: Fri, 19 Oct 2012 10:24:46 +0200
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To: Pete Leigh <pete.leigh@gmail.com>
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On 19.10.2012 10:23, Pete Leigh wrote:
> On 19 October 2012 08:45, Daniel Mack <zonque@gmail.com> wrote:
>>> [  248.815369] usb 1-1.6: new full-speed USB device number 6 using ehci_hcd
> [...]]
>>> [  249.073737] cannot submit urb 0, error -28: not enough bandwidth
> 
>> Ok, I have to fix this finally. Are you using a hub or is this device
>> directly connected?
> 
> Directly connected, I assume to this (from lspci)
> 
> :14.0 USB Controller: Intel Corporation Panther Point USB xHCI Host
> Controller (rev 04) (prog-if 30 [XHCI])
>         Subsystem: Hewlett-Packard Company Device 179b
>         Flags: bus master, medium devsel, latency 0, IRQ 46
>         Memory at d4420000 (64-bit, non-prefetchable) [size=64K]
>         Capabilities: [70] Power Management version 2
>         Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
>         Kernel driver in use: xhci_hcd
> 
> That is reported by the distro kernel.. I notice it is using an xhci
> driver, which I think is not enabled in the sound.git kernel I booted.
> I'll try again after enabling CONFIG_USB_XHCI_HCD, in case that helps.

Yes. You should extract the config of the old kernel (/proc/config.gz)
and use this as start for building the upstream.


Daniel