On 10/25/05 21:15 Dinesh Nair said the following:
the pseudo code for the read and write, called during an interrupt
cycle, are:
rx_func()
{
POSITION A
while(there_is_some_data) {
memcpy(somebuf, readbuf)
}
POSITION B
}
tx_func()
{
POSITION C
while(there_is_some_data) {
memcpy(writebuf, somebuf)
}
POSITION D
}
the question is, what op should i use for bus_dmamap_sync in positions
A, B, C and D ?
responding to my own request, i mean which of BUS_DMASYNC_PREREAD,
BUS_DMASYNC_POSTREAD, BUS_DMASYNC_PREWRITE, BUS_DMASYNC_POSTWRITE should i
use, and where ?
--
Regards, /\_/\ "All dogs go to heaven."
[EMAIL PROTECTED] (0 0) http://www.alphaque.com/
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