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USB ->Serial(RS485) Driver

Subject: USB ->Serial(RS485) Driver
From: "VAMSI" <email@hidden>
Date: Thu, 19 Oct 2006 20:21:05 +0530
Delivered-to: email@hidden
Delivered-to: email@hidden

Hi All,

I have a problem developing USB -> RS485 Driver. We have a USB - Serial Device(RS232/RS485) which is implemented as a Vendor Specific Device.

We have developed a driver which uses the Class IOSerialDriverSync & IORS232SerialStreamSync which works fine when the device is in RS232 mode but does'nt work when the device is put in RS485 Mode.

The question is do i need to implement a driver based on IOSerialDriverSync & IOSerialStreamSync to work with the USB ->serial(RS485) Device or else can i make some modifications in the present driver regarding flowcontrol logic to make it work with the device put in RS485 mode.

Can anyone please suggest me on how i can make my driver work with the USB->Serial(RS485) Device.

With Regards

Vamsi

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