1MCA_WRITE_POS(9)           Public Functions Provided          MCA_WRITE_POS(9)
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NAME

6       mca_write_pos - read POS register from card
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SYNOPSIS

9       void mca_write_pos(int slot, int reg, unsigned char byte);
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ARGUMENTS

12       slot
13           slot number to read from
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15       reg
16           register to read from
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18       byte
19           byte to write to the POS registers
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DESCRIPTION

22       Store a POS value directly from the hardware. You should not normally
23       need to use this function and should have a very good knowledge of MCA
24       bus before you do so. Doing this wrongly can damage the hardware.
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26       This function may not be used from interrupt context.
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28       Note that this a technically a Bad Thing, as IBM tech stuff says you
29       should only set POS values through their utilities. However, some
30       devices such as the 3c523 recommend that you write back some data to
31       make sure the configuration is consistent. I´d say that IBM is right,
32       but I like my drivers to work.
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34       This function can´t do checks to see if multiple devices end up with
35       the same resources, so you might see magic smoke if someone screws up.
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AUTHORS

38       Alan Cox <alan@lxorguk.ukuu.org.uk>
39           Author.
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41       David Weinehall
42           Author.
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44       Chris Beauregard
45           Author.
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48Kernel Hackers Manual 2.6.         June 2019                  MCA_WRITE_POS(9)
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