ulpt(EPSON PM-820C Inkjet Printer) does not work on 8-current

[MIHIRA Sanpei Yoshiro]

Hi.

> > [Problem 1] /etc/devd.conf does not work.
>
>   o patched driver still has problem, I Think.

  I executed /sbin/devd with debug option.  old usb stack(before
  7.x-RELEASE) notify device "release" number 0x0100 to devd.
  But 8-current usb stack does not notify to devd.

  When I comment out match "release" line from /etc/devd.conf, devd
was executed correctly.

attach 100 {
        device-name "ulpt[0-9]+";
        match "vendor" "0x04b8";
        match "product" "0x0005";
#       match "release" "0x0100";
        action  "/usr/bin/printf '000\033\001 at EJL 1284.4\n at EJL     \n' | /usr/bi
n/tr 0 '\0' > /dev/$device-name";
        action  "/usr/sbin/lpc restart all";
};

  Do you know why usb stack in 8-current does not notify "release"
  number?

> > [Problem 2] print job was stop at printing

   With below patch, I could print out about 10 papers.  But at that
   time, one time, stop printing at 1/3 paper line and Printer's
   status LED was brinking.  So I execute ``cat /dev/ulpt0'',
   Printer wa restart printing.

>Try removing the following two pieces of code from sys/dev/usb/serial/ulpt.c:
>
>                /* clear stall first */
>                mtx_lock(&sc->sc_mtx);
>                usbd_xfer_set_stall(sc->sc_xfer[ULPT_BULK_DT_RD]);
>                mtx_unlock(&sc->sc_mtx);
>
>                /* clear stall first */
>                mtx_lock(&sc->sc_mtx);
>                usbd_xfer_set_stall(sc->sc_xfer[ULPT_BULK_DT_WR]);
>                mtx_unlock(&sc->sc_mtx);

Cheers.
---
MIHIRA, Sanpei Yoshiro
Tokyo, Japan.