Messages in this thread |  | | From | "Khachaturov, Vassilii" <> | Subject | ((struct pci_dev*)dev)->resource[...].start | Date | Wed, 16 May 2001 16:58:29 -0400 |
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Can someone please confirm if my assumptions below are correct: 1) Unless someone specifically tampered with my driver's device since the OS bootup, the mapping of the PCI base address registers to virtual memory will remain the same (just as seen in /proc/pci, and as reflected in <subj>)? If not, is there a way to freeze it for the time I want to access it?
2) (Basically, the question is "Do I understand Documentation/IO-mapping.txt right?") PCI memory, whenever IO type or memory type, can not be dereferenced but should be accessed with readb() etc. On i386, PCI mem (memory type) can be accessed by direct pointer access, but this is not portable.
Kind regards, Vassilii - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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