Hi Michael, * Michael Rickmann <mrickma at gwdg.de> [Sep 12. 2012 07:45]: > Hi Jan, hi Klaus, > > last weekend came back from vacation without internet and there will > be a similar period starting next week.
its great to have you back, but I'm jealous now. ;-) > > Am 10.09.2012 21:01, schrieb Vleeshouwers, J.M.: > >Hi Michael, > > > >I tested your modified Pie backend this weekend. I had to change one line to > >get it working. My scanner takes about 10 seconds to get ready after it > >decides to collect shading data after all. So in pie_usb_calibrate() I > >changed line 3307 to: > >status = pie_usb_wait_scanner (scanner, 30); > >(30 to be very safe) I also changed the polling frequency of > >pie_usb_wait_scanner() from 16 times per second to just 1 time per second. > >The windows driver only polls every 1.5 second. I did not check if this was > >essential, though. > > I am glad it worked for you. Looks like the Powerslide/DigitDia slide scanner is a bit different. I couldn't get it to work, scanimage complains about "device busy" - even after extending the wait period in pie_usb_wait_scanner(). Cranking up the debug level revealed a 'read' request issued without the scanner indicating availabilty of data. The the scanner hung and I had to power-cycle it. Klaus -- SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imend?rffer, HRB 16746 (AG N?rnberg) Maxfeldstra?e 5, 90409 N?rnberg, Germany
