From: Laurent Pinchart (laurent.pinchart@capflow.com)
Date: Sat Jun 09 2001 - 04:40:03 EDT

  • Next message: Tim Waugh: "Re: [PARPORT] ECP FIFO residue"


    I've been reading the parport_pc code, and I was wondering why, when
    collecting FIFO residue (when switching from reverse to forward), the
    comments state that no residue should be left in the FIFO with compliant

    Why is so ? What happens when the peripheral fills the FIFO with data,
    but the caller of parport_pc_ecp_read_block_pio wants less than what the
    peripheral sent ? Shouldn't a memory buffer be filled with the residue,
    and be read with the next call to parport_pc_ecp_read_block_pio ?


    Laurent Pinchart

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