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NetBSD 6.1.5 - man page for ulpt (netbsd section 4)

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ULPT(4) 			   BSD Kernel Interfaces Manual 			  ULPT(4)

     ulpt -- USB printer support

     ulpt*   at uhub?

     The ulpt driver provides support for Universal Serial Bus (USB) printers that follow either
     the USB printer uni-directional or bi-directional protocol.

     Additional bits OR-ed in the minor device number with the unit number select various fea-
     tures of the driver:

	   Minor Bit	Function
	   0x40 	Do not initialize (reset) the device on the port.

     Some printers cannot handle the reset on open; in case of problems try the ulpn device.

     /dev/ulpt?  USB printer with reset on open

     /dev/ulpn?  USB printer without reset on open

     lpt(4), usb(4)

     USB Device Class Definition for Printing Devices, USB Implementors Forum,
     http://www.usb.org/developers/devclass_docs/usbprint11.pdf, January 2000.

     The ulpt driver appeared in NetBSD 1.4.

BSD					   May 16, 2009 				      BSD
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