Re: [lcd4linux] Problems with Parport and HD44780 driver

[Michael R. <mi...@re...>]

Hi Stefan,

> But when I start lcd4linux I get after a while (but mostly right at startup) the following error:
>
>     HD44780: ioctl(/dev/parport1, PPCLAIM) failed: 4 Interrupted system call
>     HD44780: could not initialize parallel port!
>     HD44780: start display failed!
>     Error initializing driver HD44780: Exit!
>
> Does this sound like a timing issue?

No, I don't think so. The problem is that PPCLAIM fails.

Regarding the syslog messages from your 2nd post, this sounds like the reason for "Interrupted system call"

Maybe something else is using the parport? (some printer wizard, CUPS, ...)


regards, Michael

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Michael Reinelt <mi...@re...>
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