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Re: gspca drivers




James Klaas wrote:
On 2/10/08, Sid Boyce <sboyce@xxxxxxxxxxxxxxxx> wrote:
James Klaas wrote:
Sorry, forgot to send to video4linux list as well.

---------- Forwarded message ----------
From: James Klaas <jklaas@xxxxxxxxxxxxxxxxxxxxxx>
Date: Feb 10, 2008 11:01 AM
Subject: Re: gspca drivers
To: Brandon Philips <brandon@xxxxxxxx>


On 2/7/08, Brandon Philips <brandon@xxxxxxxx> wrote:
On 21:08 Fri 01 Feb 2008, James Klaas wrote:
On 1/31/08, Brandon Philips <brandon@xxxxxxxx> wrote:
On 18:33 Thu 31 Jan 2008, James Klaas wrote:
I was hoping to get my webcam working with the latest v4l-dvb sources.
 After reading about on this list and elsewhere, I ran:

# make kernel-links

from my v4l-dvb directory in order to modify my current linux sources
to use the v4l-dvb drivers.  Then I went to my gspca directory and ran
the "gspca_build" script:

./gspca_build

 REMOVE the old module if present
Unknown symbol in module, or unknown parameter (see dmesg)

 PRINT COMPILATION MESSAGES if ERRORS look kgspca.err
make -C /lib/modules/`uname -r`/build SUBDIRS=/usr/src/modules/gspca
CC=cc modules
make[1]: Entering directory `/usr/src/linux-source-2.6.22'
  CC [M]  /usr/src/modules/gspca/gspca_core.o
/usr/src/modules/gspca/gspca_core.c:2542: error: unknown field
'hardware' specified in initializer
Are you using the latest gspca driver?  The hardware field was removed
months ago.
[ 1026.765596] gspca: disagrees about version of symbol video_devdata
...
[ 1977.737339] gspca: Unknown symbol video_device_release
Did you "make install" the v4l tree you built against and make sure none
of the old video modules were loaded (see lsmod) when you modprobe'd
gspca?

Thanks,

        Brandon

I checked the installed versions of videodev and gspca and both are
the same versions as the versions in the build directories, so they
installed fine.  I also checked the depends for videodev, v4l2-common
and v4l1-compat, and those were also the correct versions.

I double checked to make sure there weren't any modules left over in
other directories in /lib/modules/`uname -r` and didn't find any.

Since the machine in question also has a PCI video4linux device in it,
the drivers for that card already load the videodev modules.

James

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Something isn't quite right, the latest driver 20071224 is OK on the
latest 2.6.24-git kernels and the precious one 20071214 also built going
way back. These are the lines in 20071224.
tindog:/usr/src/gspcav1-20071224 # grep -rn hardware  *
changelog:46:   hardware.:)
Etoms/et61xx51.h:3:# This driver is design for embedded Linux hardware
but should work happy
gspca_core.c:1345:
spca50x->mode = spca50x->mode_cam[j].mode;      // overwrite by the
hardware mode
gspca_core.c:1348:                                      }       // end
match hardware mode
gspca_core.c:1361:/* nothing todo hardware found stream */
gspca_core.c:1837:* a process, not as read from camera hardware.
gspca_core.c:2135:/* exclude hardware channel reserved */
gspca_core.c:2613:      .hardware = VID_HARDWARE_GSPCA,
gspca.h:412:/* What we think the hardware is currently set to */
READ_AND_INSTALL:264:adjust video0 to your hardware
Sunplus/spca505.dat:513:    {0x04, 0x41, 0x01},         //hardware
snapcontrol
Sunplus/spca561-OSX.h:204:    {0, 0x0001, 0x8200},      // OprMode to be
executed by hardware
Sunplus/spca561-OSX.h:207:    {0, 0x0001, 0x8200},      // OprMode to be
executed by hardware
Sunplus/spca561.h:204:    {0, 0x0001, 0x8200},  // OprMode to be
executed by hardware
Sunplus/spca561.h:207:    {0, 0x0001, 0x8200},  // OprMode to be
executed by hardware

tindog:/usr/src/gspcav1-20071224 # grep -rn video_device_release *
gspca_core.c:2616:      .release = video_device_release,
gspca_core.c:4325:                      video_device_release(spca50x->vdev);
Binary file gspca_core.o matches
Binary file gspca.ko matches
gspca.mod.c:27: { 0x7ff0c04f, "video_device_release" },
Binary file gspca.mod.o matches
Binary file gspca.o matches
utils/spcaCompat.h:27:static inline void video_device_release(struct
video_device *vdev)

Check if this tallies with what you have.

Here's what I get:

adirondack:/usr/src/gspca/gspcav1-20071224# grep -rn hardware  *
Etoms/et61xx51.h:3:# This driver is design for embedded Linux hardware
but should work happy
READ_AND_INSTALL:264:adjust video0 to your hardware
Sunplus/spca505.dat:513:    {0x04, 0x41, 0x01},         //hardware snapcontrol
Sunplus/spca561-OSX.h:204:    {0, 0x0001, 0x8200},      // OprMode to
be executed by hardware
Sunplus/spca561-OSX.h:207:    {0, 0x0001, 0x8200},      // OprMode to
be executed by hardware
Sunplus/spca561.h:204:    {0, 0x0001, 0x8200},  // OprMode to be
executed by hardware
Sunplus/spca561.h:207:    {0, 0x0001, 0x8200},  // OprMode to be
executed by hardware
changelog:46:   hardware.:)
gspca.h:412:/* What we think the hardware is currently set to */
gspca_core.c:1345:
 spca50x->mode = spca50x->mode_cam[j].mode;      // overwrite by the
hardware mode
gspca_core.c:1348:                                      }       // end
match hardware mode
gspca_core.c:1361:/* nothing todo hardware found stream */
gspca_core.c:1837:* a process, not as read from camera hardware.
gspca_core.c:2135:/* exclude hardware channel reserved */
gspca_core.c:2613:      .hardware = VID_HARDWARE_GSPCA,

Am I pulling the source from the wrong place?  It came as a tarball.


Looks AOK. Mine built using "make clean && make && make install" for all kernels, latest 2.6.24-git22.
Regards
Sid.
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

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