[Pkg-cups-devel] Bug#658033: cups: USB Epson receipt printer M129C not recognized

Nicolas Leonard leonard.nicolas at gmail.com
Mon Jan 30 20:51:56 UTC 2012


Package: cups
Version: 1.5.0-13
Severity: normal
Tags: upstream patch

Hi,

The USB receipt printer Epson/Seiko TM-T88IV (M129C) is not recognized by the
cups usb backend.

This printer returns to Vendor-Specific values for bInterfaceClass and
bInterfaceSubClass USB attributes which prevents it to be properly dretected as
a 'regular' printer.
The output of 'lsusb -v' for such a printer is attached.
It's correctly detected by usblp, since several years, thanks to this patch:
http://www.spinics.net/lists/linux-usb-devel/msg03603.html.

I've made and tested successfully the same kind of patch for backend/usb-
libusb.c of the original source tree of cups 1.5.0.

A related drawback is that this device doesn't have any IEEE-1284 device ID, so
the output of backend/usb is something like direct
usb://Unknown/(null)?serial=J4LG008211
"/(null)?serial=J4LG008211""/(null)?serial=J4LG008211" "" ""
It could also be fixed using hard-wire values, but I haven't done such
additions in my patch.
This device ID problem doesn't prevent the printer to work perfectly.

Let me know if you want me to do additional tests - I really need this printer
to be recognized properly by cups.
(I have tested the lastest debian cups version 1.5.0-16, and the problem is
still there)

I filled the same bug report in the cups bug tracker some months ago, but they
refuse to fix it, as they don't want to support non-standard printers. IMHO
it's still a regression caused by the transition from usblp to libusb, but
anyway ...


Thanks



-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (700, 'testing'), (650, 'stable'), (600, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 3.1.0-1-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cups depends on:
ii  adduser                3.113
ii  bc                     1.06.95-2
ii  cups-client            1.5.0-13
ii  cups-common            1.5.0-13
ii  cups-ppdc              1.5.0-13
ii  debconf [debconf-2.0]  1.5.41
ii  ghostscript            9.04~dfsg-3
ii  libavahi-client3       0.6.30-6
ii  libavahi-common3       0.6.30-6
ii  libc6                  2.13-24
ii  libcups2               1.5.0-13
ii  libcupscgi1            1.5.0-13
ii  libcupsdriver1         1.5.0-13
ii  libcupsimage2          1.5.0-13
ii  libcupsmime1           1.5.0-13
ii  libcupsppdc1           1.5.0-13
ii  libdbus-1-3            1.4.16-1
ii  libgcc1                1:4.6.2-11
ii  libgnutls26            2.12.16-1
ii  libgssapi-krb5-2       1.10+dfsg~beta1-2
ii  libijs-0.35            0.35-8
ii  libkrb5-3              1.10+dfsg~beta1-2
ii  liblcms1               1.19.dfsg-1+b1
ii  libldap-2.4-2          2.4.28-1.1
ii  libpam0g               1.1.3-6
ii  libpaper1              1.1.24+nmu1
ii  libpoppler13           0.16.7-2+b1
ii  libslp1                1.2.1-7.8
ii  libstdc++6             4.6.2-11
ii  libusb-0.1-4           2:0.1.12-20
ii  lsb-base               3.2-28
ii  poppler-utils          0.16.7-2+b1
ii  procps                 1:3.2.8-11
ii  ssl-cert               1.0.28
ii  ttf-freefont           20100919-1
ii  zlib1g                 1:1.2.3.4.dfsg-3

Versions of packages cups recommends:
ii  avahi-daemon                                        0.6.30-6
ii  colord                                              0.1.15-3
ii  cups-driver-gutenprint                              5.2.7-4
ii  foomatic-filters                                    4.0.9-1
ii  ghostscript-cups                                    9.04~dfsg-3
ii  printer-driver-gutenprint [cups-driver-gutenprint]  5.2.7-4

Versions of packages cups suggests:
ii  cups-bsd     <none>
ii  cups-pdf     2.6.1-5
ii  foomatic-db  20111206-1
ii  hplip        <none>
ii  smbclient    2:3.6.1-3
ii  udev         175-3

-- Configuration Files:
/etc/cups/cupsd.conf [Errno 13] Permission denied: u'/etc/cups/cupsd.conf'

-- debconf information:
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Bus 006 Device 004: ID 04b8:0202 Seiko Epson Corp. Receipt Printer M129C
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x04b8 Seiko Epson Corp.
  idProduct          0x0202 Receipt Printer M129C
  bcdDevice            1.00
  iManufacturer           1 EPSON
  iProduct                2 TM-T88IV
  iSerial                 3 J4LG008211
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xc0
      Self Powered
    MaxPower                2mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      2
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
Device Status:     0x0001
  Self Powered



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