Building serial_cs.ko

[Nathan M]

> On Thu, Jul 28, 2005 at 08:43:34PM -0400, Nathan M wrote:
> > > > Could someone point me to a link or send me serial_cs.ko for arm linux
> > > > or alternatively provide the compiler options need to build
> > > > serial_cs.ko from serial_cs.c?
> > >
> > > Enable it in your configuration and then run make.  You don't need to
> > > make clean and rebuild from scratch with 2.6 kernels.
> >
> > Are you suggesting simply enabling it in a "make menuconfig"?  I think
> > i've found the magic bullet under "Character devices --> Serial
> > drivers --> 8250/16550 and compatible serial support" an option that
> > was not enabled. ? for this option does not specifically mention
> > serial_cs, however it does make reference to serial devices and serial
> > modems.  I didn't see anything under PCMCIA/Cardbus support in
> > menuconfig that seemed related to serial_cs, besides serial_cs.c is in
> > a serial driver folder in my linux source not a PCMCIA folder.
> 
>    <M>   8250/16550 PCMCIA device support
> 
> is the right option
> 
> > Could I just add this option, recompile the kernel on my development
> > machine and copy serial_cs.ko to the ARMcore?
> 
> It _might_ work, but maybe other, dependant changes may be done to the
> kernel, so you'd need to re-install it as a whole.
> 
>         Dominik

Yes it seems like I may need to reflash my kernel in it's entirety.  I
noticed serial_cs is mentioned under the ? for "8250/16550 PCMCIA
device support".  This created several new files among which include:

serial_cs.ko
serial_cs.mod.o
serial_cs.o
8250.ko
8250.mod.o
8250.o
8250_pci.ko
8250_pci.mod.o
8250_pci.o

I know the .ko files are 2.6.xx kernel modules and the .o files are
2.4.xx kernel modules, not sure what the .mod.o files are for?

I copied the three .ko files listed above and attempted to insert them
into my kernel with the following results:

---code-------------------------------------------------------------------------------
[root at ARMCore pcmcia]$ insmod 8250.ko
Serial: 8250/16550 driver $Revision: 1.90 $ 5 ports, IRQ sharing disabled
insmod: error inserting '8250.ko': -1 Device or resource busy
[root at ARMCore pcmcia]$ insmod 8250_pci.ko
8250_pci: Unknown symbol register_serial
8250_pci: Unknown symbol serial8250_resume_port
8250_pci: Unknown symbol serial8250_suspend_port
8250_pci: Unknown symbol unregister_serial
insmod: error inserting '8250_pci.ko': -1 Unknown symbol in module
[root at ARMCore pcmcia]$ insmod serial_cs.ko
serial_cs: Unknown symbol register_serial
serial_cs: Unknown symbol serial8250_resume_port
serial_cs: Unknown symbol serial8250_suspend_port
serial_cs: Unknown symbol unregister_serial
insmod: error inserting 'serial_cs.ko': -1 Unknown symbol in module
-------------------------------------------------------------------------------------------

Again I won't have modprobe availible until a libc bug is fixed in
2.6.7-armcore linux.  Is there anyway I could resolve this without
modprobe or reflashing the kernel?  Or do I need to go ahead and
reflash the kernel?

Thanks.

-Nathan M