The PowerPC CPM is working differently. It doesn't use a fifo but
buffers. Buffers are handed to the microprocessor only when they are
full or after a timeout period which is adjustable. In the driver, the
Which is different how - remembering we empty the FIFO on an IRQ
buffers are configured with a size of 32 bytes. And the timeout is set
to the size of the buffer. That is this timeout that I'm reducing to 1
byte in my proposed patch. I can't see what it would break for high
speed I/O.
How can a timeout be measured in "bytes". Can we have a bit more clarity
on how the hardware works and take it from there ?
Alan