Messages in this thread |  | | Subject | Re: [PATCH] parport_pc.c PnP BIOS sanity check | Date | Fri, 21 Sep 2001 13:07:42 +0100 (BST) | From | Alan Cox <> |
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> therefore a value of 0 is representative of no value whatsoever.
This has been unsafe since about 1995, when DMA 0 became available as PC's stopped using the ISA DMA engine for memory refresh (a very neat original PC hack)
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