Re: [PARPORT] Re: problems with parallel port IRQ detection

Philip Blundell (
Sun, 01 Feb 1998 12:39:50 +0000

>There are "hard-wired" (actually jumpered) chipsets which do not report
>the IRQ by the config registers. The only way to reliably detect the IRQ
>is to perform data transfer and wait for the IRQ to arrive.

Right. Then the broken calculation should be taken out - even having no
auto-irq at all and forcing people to use `irq=..' is better than a broken

>PS: I am not responsible for that formula....

Sorry. I haven't managed to keep track of exactly who wrote which bit. I
guess Jose must have been the guilty party then.


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This archive was generated by hypermail 2.0b3 on Wed 30 Dec 1998 - 10:17:22 EST