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USB Printing Architecture for vendor specific usb parallel printer device

Subject: USB Printing Architecture for vendor specific usb parallel printer device
From: "Vamsi Krishna" <email@hidden>
Date: Wed, 19 Oct 2005 11:22:15 +0530
Delivered-to: email@hidden
Delivered-to: email@hidden
Organization: Moschip

Hi,

Earlier we developed USB- Serial driver for Mac 10.3, Mac10.4 and it works fine. Now we are going to develop USB-Parallel Printer driver for

Mac10.3. Our device is vendor specific device i.e we need to send vendor commands to configure the usb parallel printer port and also for

sending/receivng data. And our device doesnot comes in to USB-Printing class devices.

Our deivce is a USB Parallel printer adapter, one end of the adapter connects to USB port and other end provides the DB25 connector, so

that you can connect printers to it.

When we experimented with the USB printing class devices ( Prolific USB Printer adapter, Its a USB Printing class device ) it uses a backend

(usb, which is in /usr/libexec/cups/backend/) and the class driver ( USBGenericPrintingClass.plugin, USBGenericTOPrintingClass.plugin, which

are in /system/Library/Printers/Libraries)

Can you please give some help on developing printing support for our vendor specific parallel printer device.

1) Can you please tell me what is the apple recommonded usb parallel printer architecture for usb vendor specific devices.

2) Is it do we need to develop a "backend" and "plugins" for our vendor specific device or can we use the usb backend which is provided by Apple.

3) How to add our Vedor Specific Printer device in Printer Setup Utility ( Like USB, Bluetooth, AppleTalk etc ) if we we need to develop our own

custom backend and plugins.

Thanks

Vamsi

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