ehci: scheduler overflow when using iso transfers

2014-04-05 Thread Beralt Meppelink
Since an update to kernel 3.13 my system suffers from a bug, probably in the EHCI scheduler. I have an em28xx based DVB USB stick which is connected to a EHCI host and uses an isochronous endpoint to transfer data from the device to the host. Initially I thought this to be related to the em28xx

Re: ehci: scheduler overflow when using iso transfers

2014-04-05 Thread Alan Stern
On Sat, 5 Apr 2014, Beralt Meppelink wrote: > Since an update to kernel 3.13 my system suffers from a bug, probably > in the EHCI scheduler. I have an em28xx based DVB USB stick which is > connected to a EHCI host and uses an isochronous endpoint to transfer > data from the device to the host.

Re: Trouble getting event device created after usbhid attaches

2014-04-05 Thread Doug Clements
I finally was able to find out what was going on. The distribution I was using was not packaging the kernel modules correctly, and was not actually including the hid-dr.ko module in the kernel modules package, so the additional module was needed on top of hid.ko (which I originally thought containe

Embedded Linux USB 3.0 OTG - xhci-hcd

2014-04-05 Thread David Kochendorfer
Hi, I'm having a problem with my Android phone USB 3.0 port: when I attach a 3.0 storage gadget/accessory (Extreme USB 3.0 - 64GB, formated as ext4), I do see an entry in /dev/block/platform/xhci-hcd, but when a I mount the device and copy a relatively large file (~2GB) to it, I see real times of

Re: Embedded Linux USB 3.0 OTG - xhci-hcd

2014-04-05 Thread Alan Stern
On Sat, 5 Apr 2014, David Kochendorfer wrote: > Hi, > > I'm having a problem with my Android phone USB 3.0 port: when I attach a > 3.0 storage gadget/accessory (Extreme USB 3.0 - 64GB, formated as ext4), > I do see an entry in /dev/block/platform/xhci-hcd, but when a I mount > the device and copy

Re: Embedded Linux USB 3.0 OTG - xhci-hcd

2014-04-05 Thread David Kochendorfer
Thanks. I'll get a more recent kernel. On sáb, 2014-04-05 at 20:52 -0400, Alan Stern wrote: > On Sat, 5 Apr 2014, David Kochendorfer wrote: > > > Hi, > > > > I'm having a problem with my Android phone USB 3.0 port: when I attach a > > 3.0 storage gadget/accessory (Extreme USB 3.0 - 64GB, formate