[sane-devel] Umax Astra 2400S w/ AEC-6712D hanging

[Oliver Rauch]

On Thursday 26 February 2004 22:07, abel deuring wrote:

> DN's debug output supports my suspicion: The last debug message is
> "[umax] using gamma download curve format type 2", which is also the
> last message before the call to umax_scsi_cmd for the gamma download.

I think that is caused by an other reason:
The TEST_UNIT_READY command returns as if the status has completed
correct. When it really was not sent then the program continues before
the scanner is ready for the next command. Particularry the Astra 2400S
does react very strange when you send commands while it is busy.

I think the TEST_UNIT_READY command is the reason.

It really is a bad behaviour when an scsi driver does not execute
a command and does not tell about it. Are'n there any warnings
in /var/log/messages or somewhere else?

Oliver

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