# Re: 2 scanners scanning at the same time?

From: Douglas Gilbert (dgilbert@interlog.com)
Date: Fri May 26 2000 - 20:36:25 PDT

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  Michaël van Eeden wrote:
  >
  > Hi,
  > i have looked everywhere but couldn't find any info on this: i try to hook
  > up two scanners to a linux box and let them scan at the same time. Because
  > my scanners (both UMAX Astra 2400S) seems to block the scsi-adapter for a
  > few seconds, i have installed 2 of them, one for each scanner. Now, when i
  > try to scan simultanously, the last scanner still waits until the first is
  > finished. I have no idea what is blocking: sg, sane, sane-umax. Does anybody
  > know of any way to make this possible?
  >
  > (my goal is to have a scan-server with multiple scanners attached to it,
  > remotely operated by either saned or sanecgi).
  >
  > My setup is:
  >
  > Debian 2.1
  > kernel 2.0.36 << Bingo
  ^^^^^^^^^^^^^^^

  Michael,
  The Linux sg driver prior to lk 2.2.6 couldn't do two or more
  things at once (unless the buffer size was 4096 bytes or less).
  Can you upgrade your version of Linux?

  If that is not possible contact me about a non-standard sg variant
  that might fix your problem.

  Doug Gilbert

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