[pxc] Help installing the pxc driver

[Marius van Wyk]

It all depends on the amount of buffers you want to allocate to do the DMA.

Work it out: x*y*c * buffer count

A buffer count of 3 is optimum for me.
Thus, yes 3Meg reserved memory is fine...

Regards,
Marius.

At 22:34 2002.05.01, you wrote:
>juan,
>
>i got prety much the same errors the first few times i
>tried.  Alessandro is right about the memory allocation.
>You need to allocate memory for DMA.  For example, if you
>had 128MB RAM, you could allocate memory for DMA at the lilo
>prompt by typing"
>
>linux mem=125MB
>
>This would allocate 3mb for DMA, which is more than enough
>(i think).  Replace "linux" with whatever you labelled your
>linux installation, "linux" is default.  what the command
>does is tell the kernal to only use 125mb of ram, and leave
>the rest unnallocated.  Later on, when DMA is needed, the
>extra RAM is allocated for DMA.
>
>steve
>
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