So I understand that I am using a usb->Centronics parallel adapter. Which works fin in Windows 10. However where can I find a more technical reference of talking to the CH341A IC. There is a datasheet but that is limited more or les to the electronics. The drivers are apparently only for the windows systems.
Does such a manual exist? Nico -----Original Message----- From: nico.verduin--- via Freedos-user <[email protected]> Sent: Sunday, July 28, 2024 10:12 AM To: 'Frantisek Rysanek' <[email protected]>; 'Discussion and general questions about FreeDOS.' <[email protected]> Cc: [email protected] Subject: Re: [Freedos-user] Printing to USB Printers Frank Thank you very much. This, first of all, shows me what homework I still have to do due to lack of knowlegdge. I will give it a shot. Thanks Nico -----Original Message----- From: Frantisek Rysanek <[email protected]> Sent: Saturday, July 27, 2024 10:00 PM To: 'Discussion and general questions about FreeDOS.' <[email protected]> Cc: [email protected] Subject: Re: [Freedos-user] Printing to USB Printers > Michael seems like we have the same problem. I am trying to print to a > Epson LQ300+ through usb on an DELL inspire 1525 with native freedos > 1.3 on it. That's just an evolution of the ultra-classic Epson dot matrix printers, and it speaks the ultra-classic ESC*P2 print job format. Based on terminal-style bare ASCII, including control characters that make sense on a printer, enriched with "escape sequences". The printer still takes that format on the respective USB endpoint. All that you're missing is a class-based USB LPT driver for DOS. (If you use crude transport over Samba to BSD LPD, it works.) A quick google has shown to me the following open-source project: https://github.com/crazii/USBDDOS ...an effort in the right direction, i.e. a layered stack, but contains no driver for USB LPT class devices, and even the included class-based CDC (serial) driver is not a fully functional TSR exporting a COM device in DOS - it's a mere C library for anyone interested to call some functions to talk to the "virtual serial" endpoints... Do I volunteer to try to extend this? No :-) Frank _______________________________________________ Freedos-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-user _______________________________________________ Freedos-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-user
