[hcflinux] Fedora 2.6.13.x kernels and hcfpci modem

[Linuxant support (Jonathan)]

Hi,

we were able to reproduce some problems with the kernels of the 
development tree of Fedora Core 5 (which are labeled as 2.6.13 kernels 
but are in reality based on 2.6.14-rc1, at least for the 
'2.6.13-1.1555_FC5' kernel) and these problem will be fixed in the next 
release of the modem drivers which should be out soon.

Please note that the 'ASYNC_CALLOUT_ACTIVE' flag is not used when 
compiling against 2.6 kernels as this flag is used in the following files:

---
modules/GPL/serial_core.c
modules/GPL/serial_core.h
---

which are only used when compiling against a 2.4 kernel.

Regards,


Jonathan
Technical specialist / Linuxant
www.linuxant.com
support at linuxant.com



Alex F wrote:
> Jonathan,
> 
> That's correct.
> 
> I have an up to date FC4 installation with the FC5 development kernel.
> 
> The kernel is built using the kernel-2.6.spec, with the only modification
> being to set the FC4 flag instead of FC5.
> 
> The development branch requires a handful of updated RPMs including kudzu,
> udev, ppp and some others that I can't tell you off hand, but they don't
> appear to affect this issue as I have used these updated RPMs with the
> current FC4 kernel (2.6.12-1.1447) in order to exclude them from the
> problem.
> 
> The initial fact I noted was that around the 2.6.13-1.1542 development
> kernel, the definition of ASYNC_CALLOUT_ACTIVE disappeared from the
> linux/serial.h header file in the kernel's build tree.
> 
> A quick search on the net seemed to indicate that callout related code was
> slowly being removed from the kernel... I have not had a chance to dig
> deeper into the issue yet.
> 
> As I mentioned in my original post, I was just thinking out loud and 
> realise
> that I'm travelling down an unsupported path, but was curious about the
> implications of the evolving kernel!
> 
> Regards,
> 
> alex
> 
> ----
> Alex Farkas
> PhD BSc(Hons) GradCertMgmt MIEAust CPEng
> magamnak at hotmail dot com
> +61 8 8300 4478
> 
>>
>>
>> -----Original Message-----
>> From: Linuxant support (Jonathan) [mailto:support at linuxant.com]
>> Sent: Friday, 16 September 2005 19:11
>> To: alex at cs.adelaide.edu.au
>> Cc: hcflinux at lists.linuxant.com
>> Subject: Re: [hcflinux] Fedora 2.6.13.x kernels and hcfpci modem
>>
>> Hi,
>>
>> we are not aware of this problem and we will investigate. The
>> '2.6.13-1.1542' kernel you are referring to is a Fedora Core 5
>> development kernel?
>>
>> Regards,
>>
>>
>> Jonathan
>> Technical specialist / Linuxant
>> www.linuxant.com
>> support at linuxant.com
>>
>>
>>
>> Alex F wrote:
>> > Hi there,
>> >
>> > I am using the hcfpci modem drivers on Fedore Core 4 and I also run
>> > custom kernels from the Fedora development branch.
>> >
>> > I noticed from about 2.6.13-1.1542 onwards, the ASYNC_CALLOUT_ACTIVE
>> > definition had been removed from the kernel's header files and that the
>> > 1.06 drivers stopped working - up to then, the 1.06 driver (with the
>> > patches applied) compiled correctly.
>> >
>> > Actually, it is not so much that the driver would not compile but that
>> > there were 4 names that could nod be resolved at load time:
>> >
>> > uart_register_port
>> > uart_unregister_port
>> > cnxthcf_cnxt_serial_remove
>> > cnxthcf_cnxt_serial_add
>> >
>> > I realise that the "official" kernel is the only one that really needs
>> > to be supported, but I am curious to know whether these later 2.6.13
>> > kernels are being tracked and whether this issue is likely to be
>> > resolved in the near future.
>> >
>> > All I have been able to gather from web blogs is that serial callout
>> > related code was being purged from the 2.6.x kernel... I have not been
>> > able to find anything more specific at this stage.
>> >
>> > I can provide debug dumps, but as I said I realise that it is 
>> impossible
>> > for Linuxant to support every unofficial kernel out there so I am not
>> > expecting an immediate solution!
>> >
>> > alex
>> >
>> > _______________________
>> >
>> > Dr Sándor Farkas, CPEng.
>> > Voice: +61 (0)8 8300 4478
>> > _______________________
>> >
>> >
>> > _______________________________________________
>> > hcflinux mailing list
>> > hcflinux at lists.linuxant.com
>> > https://www.linuxant.com/mailman/listinfo/hcflinux
>>
> 
> 
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