BSP and Device Driver Development Guide
The pollWrite routine is responsible for writing len characters
from buf to the serial device specified by minor.
int pollWrite (int minor, const char *buf, int len)
{
for (i=0; i<len; i++) {
put buf[i] into the UART channel minor
wait for the character to be transmitted
on the serial line
}
return 0
}
BSP and Device Driver Development Guide
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