Re: Problems compiling ksdazzle module on OpenSUSE 10.2

Hello Alex,

On 8/25/07, Alex Villací­s Lasso <[email protected]> wrote:
> Steve Rooke escribió:
> > Hello Alex,
> >
> > I'm trying to compile your ksdazzle module for a Kingsun irda to usb
> > device under OpenSUSE 10.2 with a 2.6.18.8-0.5 kernel (which is the
> > latest I can find for this distribution). The version of ksdazzle.c I
> > have is 0.1.1.
> >
> Ashik Ahamed escribió:
> > *Hi Alex,*
> > *Thanks for the help.*
> > *When I tried to run make i got the following output in the terminal*
> >
> > make -C /lib/modules/2.6.15-28-386/build M=`pwd` modules
> > make[1]: Entering directory `/usr/src/linux-headers-2.6.15-28-386'
> >   CC [M]  /home/ashik/Desktop/ksdazzle/ksdazzle-sir.o
> Both of these situations happen because the kernel is too old and lacks
> symbols defined in 2.6.22. I know there are some #define's that can be
> used to work around differences in kernel versions, and I have tried to
> use it in the source file attached. Both of you should replace the
> version of ksdazzle-sir.c that came in the tarball with this version,
> then run "make clean", and then "make" again. If everything goes
> according to plan, the version should be detected correctly, and the
> newer symbols should be avoided. Of course, I expect you to report back
> on whether the driver compiles and runs successfully. Then I will
> proceed to place this version in my website.
>
> I have chosen the cutoff for the usb symbols at 2.6.19. I am still
> googling around to see whether this is the right kernel version to
> check. Specifically, 2.6.18 and earlier lack usb_endpoint_is_int_in, and
> usb_endpoint_is_int_out, and require an additional parameter of type
> struct pt_regs * in URB callbacks. Anybody who knows the right kernel
> versions to check, please comment on this.

make gives:
make -C /lib/modules/2.6.18.8-0.5-default/build M=`pwd` modules
make[1]: Entering directory `/usr/src/linux-2.6.18.8-0.5-obj/i386/default'
make -C ../../../linux-2.6.18.8-0.5
O=../linux-2.6.18.8-0.5-obj/i386/default modules
  CC [M]  /home/steve/MyDownloads/ksdazzle/ksdazzle-sir.o
/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.c: In function
'ksdazzle_speed_irq':
/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.c:171: error: parameter
name omitted
/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.c: In function
'ksdazzle_send_irq':
/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.c:251: error: parameter
name omitted
/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.c: In function 'ksdazzle_rcv_irq':
/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.c:362: error: parameter
name omitted
make[4]: *** [/home/steve/MyDownloads/ksdazzle/ksdazzle-sir.o] Error 1
make[3]: *** [_module_/home/steve/MyDownloads/ksdazzle] Error 2
make[2]: *** [modules] Error 2
make[1]: *** [modules] Error 2
make[1]: Leaving directory `/usr/src/linux-2.6.18.8-0.5-obj/i386/default'
make: *** [ksdazzle-sir.ko] Error 2

The second parameter does not seem to be used in the functions
ksdazzle_speed_irq, ksdazzle_send_irq and ksdazzle_rcv_irq and a quick
hack allows the code to compile fine. The module loads and lirc can be
loaded but provides only occasional functionality with a variety of
remotes. I have tried with irw and certainly get correct codes when it
works. Testing with mode2 shows only occasional output. Maybe timing
issues.

It certainly seems stable and I have experienced no system
instability. I guess we need some debug code in there now and I will
carry out further testing, and report back. Almost there!

Thanks,
Steve

-- 
Steve Rooke - ZL3TUV & G8KVD
Omnium finis imminet

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