On 19 October 2012 09:24, Daniel Mack zonque@gmail.com wrote:
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.
No dice with xchi enabled. In any case, when I look properly, there's 3 entries in the lspci output for the host controller - one xhci and two ehci.
The ehci ones (reported under sound.git) are:
00:1a.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Contro ller #2 (rev 04) (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device 179b Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at d4439000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd
00:1d.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device 179b Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at d4438000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd
It also shows the xhci one, now, too.
There's no change to the behaviour when connecting the UA-25 - still shows "using ehci", which looks like what the distro kernel reports too.
I'll try re-doing the kernel based off config.gz from the distro kernel, as you suggest, probably this evening. What I'd actually done was make defconfig, make localmodconfig and make menuconfig (enabling a few things necessary to boot, and making the sound drivers be modules)
If this problem is confined to the usb subsystem, it seems unlikely I broke anything with my config operations, but I'm no expert certainly.
Cheers,
- Pete.