Karl Heinz Kremer <[email protected]> writes: karl, thanks again.
i'm going to plan a total OS upgrade soon. for now, here are the two scanner driver files you are referring to; http://www.jerrysievers.com/.scannerSource/ i see in those files #defines for a NAK timeout. maybe this can be changed to help temporarily. please advise. > I cc'ed this message to the mailing list. Please always reply to the > list as well. > > When I first replied, I did not realize how ancient 2.2.17 is :-) Back > then, USB > support in the stock kernel was marginal, and people usually used the > 2.4 > backport. Unfortunately I don't have any 2.2.x kernel source on my > system > anymore - never thought I would need it again. > > Can you send me the files scanner.c and scanner.h from your source tree? > > If not, does anybody on the list still have a Red Hat 2.2.17-8 source > tree? > Are these files anywhere on the Internet? I was not able to find a > source > package for the Red Hat kernel. > > Karl Heinz > > > On Sunday, November 16, 2003, at 02:31 PM, Jerry Sievers wrote: > > > hi karl and thanks for the quick reply. > > > > 2.2.17-8 is the kernel version. > > > > this is my production workstation and it's setup with speech synthesis > > so, i have to be careful not making radical changes to this box. a > > recent upgrade of glibc went ok but was very carefully planned. > > > > i have impaired vision, can see the screen and graphics but text is > > not clear enough to read directly. > > > > i will try setting up a spare machine with a newer linux to see if > > this works better. > > > > usb_control/bulk_msg: timeout > > > > i think this line from kernel log is what you are referring to as > > possibly causing the problem. > > > > yes, i would rather try compile the kernel module first and see if > > this helps. > > > > in the meantime, i am very happy that it's working this well now and > > without much configuration time. > > > > please do offer a suggestion to me about where the kernel module > > source code might be tuned. i suppose this timeout parm can't be > > changed by writing into /proc somewhere. too bad about that. > > > > thanks. > > > > > > > > Karl Heinz Kremer <[email protected]> writes: > > > >> Jerry, > >> > >> the list of available resolutions gets reported by the scanner. So if > >> you > >> see resolutions up to 3200 dpi, the scanner can actually support all > >> of them. > >> > >> Your kernel is relatively old, and the timeout problem is a known > >> problem - > >> even though it's more likely to occur when you can using a > >> transparency > >> unit. > >> > >> If you cannot update your kernel, you can modify a timeout value in > >> the scanner.c source file. Which kernel version are you using exactly? > >> With this information I may be able to tell you which line to change. > >> > >> Karl Heinz > >> > >> > >> On Sunday, November 16, 2003, at 11:24 AM, Jerry Sievers wrote: > >> > >>> hi. a few days ago i got an epson 1660 and compiled sane backends > >>> 1.0.13-pre2. setup the modules.conf file with vendor and product ID > >>> info as such; > >>> > >>> options scanner vendor=0x04b8 product=0x011e > >>> > >>> this is on linux redhat 7.0 w/kernel 2.2. > >>> > >>> scanimage --help reports resolutions up to 3200 DPI. > >>> > >>> setting anything higher than 600 for mode color or 800 for mode > >>> binary > >>> causes the scanning to hang and an IO error reported by scanner.c. > >>> eg; > >>> > >>> usb_control/bulk_msg: timeout > >>> scanner.c: read_scanner(0): funky result:-32. Please notify the > >>> maintainer. > >>> > >>> please, wondering what to expect from this scanner and if there's a > >>> problem with higher resolutions scans or just a bug in the reporting > >>> of this model's capabilities. > >>> > >>> i am legally blind and not able to read the specs from the paperwork > >>> supplied with the scanner for a better idea of what's supported. > >>> > >>> general purpose scanning seems fine. > >>> > >>> great job sane developers! > >>> > >>> > >>> -- > >>> --------------------------------------------------------------------- > >>> -- > >>> -------- > >>> Jerry Sievers 305 854-3001 (home) Unix Administrator/Consultant > >>> 305 321-1144 (mobile http://www.JerrySievers.com/ > >>> > >>> -- > >>> sane-devel mailing list: [email protected] > >>> http://lists.alioth.debian.org/mailman/listinfo/sane-devel > >>> Unsubscribe: Send mail with subject "unsubscribe your_password" > >>> to [email protected] > >> > > > > -- > > ----------------------------------------------------------------------- > > -------- > > Jerry Sievers 305 854-3001 (home) Unix Administrator/Consultant > > 305 321-1144 (mobile http://www.JerrySievers.com/ > -- ------------------------------------------------------------------------------- Jerry Sievers 305 854-3001 (home) Unix Administrator/Consultant 305 321-1144 (mobile http://www.JerrySievers.com/
