<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Yes that is right, you can use sqUnixSerial.c instead of the sqMacSerialPort.c but there are limitation about the maximum speed, I have a hacked version of sqUnixSerial.c using the the same way that pyserial use, using this file my program sqPronterface works well at 250000 bps in intel mac, and a maximum of 230400 bps in ppc mac:<div class=""><br class=""></div><div class=""></div></body></html>