[hpoj-devel] HP 635 hanging on scan

[Clifford H. <cj...@os...>]

Folk,

I have an HP Officejet 635. Last December I spoke with Mary Kumar, whose
daughter worked with us over summer.  Mary is head of Support for HP
Corporate.  I worked previously with her in HP's Australian Software
Operation.  Anyhow, she said she'd been asked to radically revamp HP's
support practises and asked if I had any input. I said yes, I have a
nice OJ635 but no Linux drivers - why doesn't HP provide support for
the open source community?  Anyhow, I don't know if that's what changed
things, but I'm glad they have changed!

I recently built (from source) the ptal, hpoj, sane and xsane software
on my Debian 2.2 (Potato) system, as the available .deb required a few
upgrades:

(Reading database ... 24449 files and directories currently installed.)
Preparing to replace xsane 0.70-1 (using xsane_0.70-1_i386.deb) ...
Unpacking replacement xsane ...
dpkg: dependency problems prevent configuration of xsane:
 xsane depends on libc6 (>= 2.1.97); however:
  Version of libc6 on system is 2.1.3-13.
 xsane depends on libgimp1.2 (>= 1.2.0); however:
  Package libgimp1.2 is not installed.
 xsane depends on libgtk1.2 (>= 1.2.8-3); however:
  Version of libgtk1.2 on system is 1.2.7-1.
 xsane depends on libsane (>= 1.0.3); however:
  Package libsane is not installed.
 xsane depends on xlibs (>= 4.0.1-11); however:
  Package xlibs is not installed.
dpkg: error processing xsane (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 xsane

Now, the "hpo" command works fine, but the test scan command hangs. Here's
the diagnostic output from the command:
PTAL_DEBUG=2 SANE_DEBUG_HP=128 scanimage -d hp:mlc:mlcpp0 --test

[sanei_debug] Setting debug level of hp to 128.
[hp] sane_init called
ptalInit(): debug level set to 2.
ptalInit()
ptalDeviceProbe: dev=<mlc:mlcpp0>.
ptalDeviceAdd(provider=<mlc>,name=<mlcpp0>): dev=0x08050440.
ptalDeviceProbe: dev=<mlc:mlcpp1>.
ptalDeviceAdd(provider=<mlc>,name=<mlcpp1>): dev=0x08050770.
[hp] sane_init will finish with Success
[hp] sane_open called
[hp] hp_read_config: hp backend v0.94 starts reading config file
[hp] hp_read_config: processing line <#scsi HP>
[hp] hp_read_config: processing line <#/dev/scanner>
[hp] hp_read_config: processing line <>
[hp] hp_read_config: processing line <# Parallel-port-connected MFP:>
[hp] hp_read_config: processing line <mlc:mlcpp0>
[hp] hp_read_config: processing line <option connect-ptal>
[hp] hp_read_config: attach mlc:mlcpp0
[hp] hp_get_dev: New device mlc:mlcpp0, connect-ptal, scsi-request=0
[hp] sanei_hp_device_new: mlc:mlcpp0
ptalMlcDeviceOpen(name=<mlcpp0>): found matching dev=0x08050440.
ptalChannelAllocate(dev=0x08050440): chan=0x08054840.
ptalChannelSetRemoteService(chan=0x08054840,serviceType=2,socketID=0,serviceName=<>)
[hp] scsi_flush: writing 2 bytes:
[hp]  0x0000  1B 45                                            .E
ptalChannelOpen(chan=0x08054840): fd=4.
ptalChannelWrite(chan=0x08054840,buffer=0x0805400E,count=2)

There is a delay of several seconds after the scsi_flush lines, then the
final two lines appear.

Have you any idea what's going wrong here?