Re: [PARPORT] ECP mode transfers in 2.4.x kernels

From: Philip Blundell (
Date: Thu Aug 30 2001 - 10:43:23 EDT

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    >no longer does the "keep-alive" thing. It downloads a bunch of data,
    >writes the flash, downloads a bunch of data, write the flash, and so
    >on. It can be almost a minute between downloads in some cases.

    Ah, I see.

    Well, in theory these timeouts should be non-fatal. The code in parport_pc
    goes to some trouble to make sure it knows how much data was left in the FIFO
    when the timeout occurred, in order to make sure that none is lost. But it's
    entirely possible that bugs are lurking, for example if it's misdetecting the
    depth of the FIFO at initialisation.


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