Re: Raspberry Pi 3B USB Printing Issue

From: Archimedes Gaviola <archimedes.gaviola_at_gmail.com>
Date: Sat, 02 Apr 2022 01:10:25 UTC
On Sat, Apr 2, 2022 at 8:30 AM Hans Petter Selasky <hps@selasky.org> wrote:

> On 4/2/22 00:56, Archimedes Gaviola wrote:
> > On Fri, Apr 1, 2022 at 12:01 AM Hans Petter Selasky <hps@selasky.org>
> wrote:
> >
> >> On 3/31/22 15:52, Archimedes Gaviola wrote:
> >>> Are you pertaining to this code Hans, the one you've shared to me
> >>> previously?
> >>>
> >>> +       /* Epson printer */
> >>> +       {USB_VPI(USB_VENDOR_EPSON, USB_PRODUCT_EPSON_TMU220B, 0)},
> >>
> >> Yes, but you can also add the IFACE_XXX ones with "," simply.
> >>
> >
> > Hi Hans,
> >
> > Here's what I have come-up with based on my understanding from your
> > suggestion. I took a look as well from other USB devices' sources. This
> > compiles without any problems, still able to detect my printers and
> > printing still works well. Let me know if this is correct or needs
> further
> > changes.
> >
> > freebsd@generic:~ % diff -Nur /usr/src/sys/dev/usb/serial/ulpt.c.orig
> > /usr/src/sys/dev/usb/serial/ulpt.c
> > --- /usr/src/sys/dev/usb/serial/ulpt.c.orig     2022-03-21
> > 19:44:29.178010000 +0800
> > +++ /usr/src/sys/dev/usb/serial/ulpt.c  2022-04-02 14:27:54.073592000
> +0800
> > @@ -499,6 +499,13 @@
> >          {USB_IFACE_CLASS(UICLASS_PRINTER),
> >           USB_IFACE_SUBCLASS(UISUBCLASS_PRINTER),
> >           USB_IFACE_PROTOCOL(UIPROTO_PRINTER_1284)},
> > +
> > +       /* Epson printer */
> > +       {USB_VENDOR(USB_VENDOR_EPSON),
> > +        USB_PRODUCT(USB_PRODUCT_EPSON_TMU220B),
> > +        USB_IFACE_CLASS(UICLASS_VENDOR),
> > +        USB_IFACE_SUBCLASS(UISUBCLASS_VENDOR),
> > +        USB_IFACE_PROTOCOL(UIPROTO_PRINTER_BI)},
> >   };
> >
> >   static int
> > @@ -555,9 +562,11 @@
> >                                  break;
> >                          } else {
> >                                  alt_index++;
> > -                               if ((id->bInterfaceClass ==
> > UICLASS_PRINTER) &&
> > -                                   (id->bInterfaceSubClass ==
> > UISUBCLASS_PRINTER) &&
> > -                                   (id->bInterfaceProtocol ==
> > UIPROTO_PRINTER_BI)) {
> > +                               if ((id->bInterfaceClass ==
> UICLASS_PRINTER
> > ||
> > +                                   id->bInterfaceClass ==
> UICLASS_VENDOR)
> > &&
> > +                                   (id->bInterfaceSubClass ==
> > UISUBCLASS_PRINTER ||
> > +                                   id->bInterfaceClass ==
> > UISUBCLASS_VENDOR) &&
> > +                                   (id->bInterfaceProtocol ==
> > UIPROTO_PRINTER_BI)) {
> >                                          goto found;
> >                                  }
> >                          }
> >
> > freebsd@generic:~ % diff -Nur /usr/src/sys/dev/usb/usbdevs.orig
> > /usr/src/sys/dev/usb/usbdevs
> > --- /usr/src/sys/dev/usb/usbdevs.orig   2022-03-21 19:42:20.999397000
> +0800
> > +++ /usr/src/sys/dev/usb/usbdevs        2022-04-01 01:21:31.361567000
> +0800
> > @@ -1941,6 +1941,7 @@
> >   product EPSON 2480             0x0121  Perfection 2480 scanner
> >   product EPSON 3590             0x0122  Perfection 3590 scanner
> >   product EPSON 4990             0x012a  Perfection 4990 Photo scanner
> > +product EPSON TMU220B          0x0202  TM-U220B
> >   product EPSON CRESSI_EDY       0x0521  Cressi Edy diving computer
> >   product EPSON N2ITION3         0x0522  Zeagle N2iTion3 diving computer
> >   product EPSON STYLUS_875DC     0x0601  Stylus Photo 875DC Card Reader
> >
> > freebsd@generic:~ % dmesg
> > ...
> > ugen1.5: <EPSON EPSON UB-U03II> at usbus1
> > ugen1.6: <Printer-58 USB Printing Support> at usbus1
> > ulpt0 on uhub1
> > ulpt0: <EPSON EPSON UB-U03II, class 0/0, rev 1.10/2.00, addr 5> on usbus1
> > ulpt0: using bi-directional mode
> > ulpt1 on uhub1
> > ulpt1: <Printer-58 USB Printing Support, class 0/0, rev 2.00/2.54, addr
> 6>
> > on usbus1
> > ulpt1: using bi-directional mode
> > ulpt1: offline
> >
>
> Here you go:
>
> https://cgit.freebsd.org/src/commit/?id=88162f7abd61206c98432f2c0de869a59be13854
>
> Happy printing :-)
>

Hans, thank you so much for the help and guidance! :-)