Printer class
Overview
The USB class protocol for printers was defined for the handling of output devices, like printers and plotters. A printer connected to emUSB-Host is automatically configured. The implementation of the printer class forwards the print data to a connected printer. The actual print data has to be generated using printer specific codes.
Key features
- Handling of multiple printers at the same time
- Notifications about printer connection status
- Ability to query the printer operating status and its device ID
- Small footprint
Requirements
Components required to use emUSB-Host Printer:
- emUSB-Host Printer (Included in emUSB-Host PRO package)
- emUSB-Host core (Included in emUSB-Host PRO package)
- emUSB-Host target driver (One driver is included in emUSB-Host PRO package)
- Real-time operating system (embOS or other)
Application Samples emUSB-Host Printer
Printer
Sample Application Included
An example application which uses the API is provided with any shipment or eval software including emUSB-Host. This example displays information about the printer and its connection status in the I/O terminal of the debugger. In addition the text "Hello World" is printed out at the top of the current page when the first printer connects.