Does the driver care about the bus?

In another Internet discussion venue the question has arisen whether the driver written for a PCI SCSI card (and not updated since PCI-Express was introduced) will work with a PCI-Express card using the same chip.

One person says "No way! The driver has to be written with PCI-Express in mind." I say that I am not so sure, based on the fact that the SNAP video drivers don't seem to care whether a card is AGP or PCI-Express, as long as the chip is supported, He says, "Then they must have written the driver to support both buses."

To be specific, we are discussing the AICU320.ADD driver from Adaptec and their 29320/39320 Ultra 320 SCSI cards.

Any words of wisdom?

BTW, how much faster than a 32-bit PCI card is a 1x PCI-E card anyway?

Perce
.

Relevant Pages

  • RE: [UPDATED PATCH] EFI support for ia32 kernels
    ... >> reuse a single driver image for multiple architectures assuming there ... As one of the people responsible for the EFI Specification and our ... Perhaps the UNDI network card interface that Intel developed ... BIOS can't shadow that much ROM code. ...
    (Linux-Kernel)
  • Re: Linux, X, ld, gcc, linking, shared libraries and stuff
    ... >> because, originally, video cards / system RAM could NOT afford to have ... > GL actually "copies" everything, but it's done by the graphics card, so ... > anyway if it's not hardware accelerated. ... installed the proper driver, then it zooms around the screen... ...
    (alt.lang.asm)
  • Re: XXX_Init only being called once
    ... > My stream interface driver has been stripped right back to try to solve ... > I plug my card in the first time. ... > There are two new active keys in the registry PCMCIA and myDriver. ... > No entry points are called in my driver. ...
    (microsoft.public.windowsce.platbuilder)
  • Re: USB 2.0 All-in-1 card reader cant switch cards without unplugging
    ... On other ones I've used a drive letter shows ... as if the original card is still inserted. ... can have a unique identity for driver installation ... USB hard drive enclosure is detected. ...
    (microsoft.public.windowsxp.hardware)
  • Re: Software Conundrum, Clarkdale
    ... a driver would be virtually identical to a WinXP driver). ... to Win2K, I decided the video card I picked up, would support both. ... of Windows 7, relies on hardware virtualization (I cannot use ...
    (alt.comp.hardware.pc-homebuilt)