Re: Scanner fails on USB3 port

2013-07-02 Thread Alan Stern
On Tue, 2 Jul 2013, Martin van Es wrote: > On Tue, Jul 2, 2013 at 6:47 PM, Alan Stern wrote: > > On Tue, 2 Jul 2013, Martin van Es wrote: > > > > Maybe that's the explanation: The scanner isn't able to cope when the > > packets arrive too rapidly. It _is_ clear from the usbmon data that > > the

Re: Scanner fails on USB3 port

2013-07-02 Thread Martin van Es
On Tue, Jul 2, 2013 at 6:47 PM, Alan Stern wrote: > On Tue, 2 Jul 2013, Martin van Es wrote: > > Maybe that's the explanation: The scanner isn't able to cope when the > packets arrive too rapidly. It _is_ clear from the usbmon data that > the scanner is at least slightly buggy. So the scanner mi

Re: Scanner fails on USB3 port

2013-07-02 Thread Alan Stern
On Tue, 2 Jul 2013, Martin van Es wrote: > Here's the usbmon output on my old USB2 laptop, kernel 3.9.1 > Including the plug/unplug events. scanimage -L succesfully reports the > scanner and returns the prompt. The two usbmon traces are essentially identical (including the -71 errors!) right up t

Re: Scanner fails on USB3 port

2013-07-02 Thread Martin van Es
Here's the usbmon output on my old USB2 laptop, kernel 3.9.1 Including the plug/unplug events. scanimage -L succesfully reports the scanner and returns the prompt. M. On Mon, Jul 1, 2013 at 10:14 PM, Alan Stern wrote: > On Mon, 1 Jul 2013, Martin van Es wrote: > >> Here's the usbmon log on bus 0

Re: Scanner fails on USB3 port

2013-07-01 Thread Alan Stern
On Mon, 1 Jul 2013, Martin van Es wrote: > Here's the usbmon log on bus 01 > > worflow: > 1. cat /sys/kernel/debug/usb/usbmon/1u > 1u.mon.out > 2. plug scanner > 3. scanimage -L > 4. unplug scanner > 5. stop cat The problems start here: 88023423db40 1844894429 S Bo:1:004:3 -115 4 = 01070001

Re: Scanner fails on USB3 port

2013-07-01 Thread Martin van Es
Here's the usbmon log on bus 01 worflow: 1. cat /sys/kernel/debug/usb/usbmon/1u > 1u.mon.out 2. plug scanner 3. scanimage -L 4. unplug scanner 5. stop cat Regards, Martin On Mon, Jul 1, 2013 at 7:34 PM, Greg KH wrote: > On Mon, Jul 01, 2013 at 10:45:27AM +0200, Martin van Es wrote: >> On Mon, J

Re: Scanner fails on USB3 port

2013-07-01 Thread Greg KH
On Mon, Jul 01, 2013 at 10:45:27AM +0200, Martin van Es wrote: > On Mon, Jul 1, 2013 at 12:17 AM, Greg KH wrote: > > On Sun, Jun 30, 2013 at 09:35:59PM +0200, Martin van Es wrote: > >> 3.9.8 brought a tiny improvement! > >> > >> scanimage -L now succesfully reports the scanner, but then hangs. > >

Re: Scanner fails on USB3 port

2013-07-01 Thread Martin van Es
On Mon, Jul 1, 2013 at 12:17 AM, Greg KH wrote: > On Sun, Jun 30, 2013 at 09:35:59PM +0200, Martin van Es wrote: >> 3.9.8 brought a tiny improvement! >> >> scanimage -L now succesfully reports the scanner, but then hangs. >> I still can not scan with xsane however (no scanner device found) >> >> $

Re: Scanner fails on USB3 port

2013-06-30 Thread Greg KH
On Sun, Jun 30, 2013 at 09:35:59PM +0200, Martin van Es wrote: > 3.9.8 brought a tiny improvement! > > scanimage -L now succesfully reports the scanner, but then hangs. > I still can not scan with xsane however (no scanner device found) > > $ scanimage -L > device `plustek:libusb:001:004' is a Ca

Re: Scanner fails on USB3 port

2013-06-30 Thread Martin van Es
3.9.8 brought a tiny improvement! scanimage -L now succesfully reports the scanner, but then hangs. I still can not scan with xsane however (no scanner device found) $ scanimage -L device `plustek:libusb:001:004' is a Canon CanoScan N670U/N676U/LiDE20 flatbed scanner (hang, but eventually returns

Re: Scanner fails on USB3 port

2013-05-24 Thread Martin van Es
Is noone interested in taking this up with me? Martin On Mon, May 13, 2013 at 1:20 PM, Martin van Es wrote: > Hi, > > I have exactly the same problem as described by Harald Judt in this mail: > http://www.spinics.net/lists/linux-usb/msg58841.html > > The thread ends here, in mid conversation wit