Backwards Compatibility BUG

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04-18-2012, 06:07 PM
luther

Backwards Compatibility BUG

Forum Members,
WiFi works out-of-the-box w/6.4.3 liveCD:

Code:

knoppix@Microknoppix:~$ sudo modprobe -a ssb knoppix@Microknoppix:~$ sudo modprobe -a b43 knoppix@Microknoppix:~$ sudo lsmod Module Size Used by b43 134859 0 rng_core 2338 1 b43 mac80211 144095 1 b43 cfg80211 95850 2 b43,mac80211 ssb 32414 1 b43 ipv6 196975 10 parport_pc 24132 0 ppdev 4117 0 lp 6119 0 parport 20814 3 parport_pc,ppdev,lp snd_usb_audio 57808 0 snd_hwdep 3950 1 snd_usb_audio tpm_tis 5261 0 snd_usbmidi_lib 12490 1 snd_usb_audio snd_seq_midi 3200 0 tpm 7773 1 tpm_tis snd_rawmidi 12467 2 snd_usbmidi_lib,snd_seq_midi tpm_bios 3347 1 tpm hp_wmi 4393 0 ac 2215 0 battery 7656 0 option 12650 0 usb_wwan 6011 1 option usbserial 21327 2 option,usb_wwan 8139too 14396 0 snd_atiixp_modem 6535 0 sdhci_pci 4801 0 8250_pci 19272 0 8139cp 12900 0 tifm_7xx1 3030 0 sdhci 11970 1 sdhci_pci pcmcia 24250 2 b43,ssb tifm_core 3258 1 tifm_7xx1 mmc_core 43452 3 b43,ssb,sdhci mii 2694 2 8139too,8139cp 8250 14974 1 8250_pci snd_atiixp 8993 1 ohci1394 20984 0 yenta_socket 15616 0 ieee1394 51946 1 ohci1394 serial_core 12542 1 8250 i2c_piix4 6580 0 snd_ac97_codec 77637 2 snd_atiixp_modem,snd_atiixp k8temp 2407 0 joydev 6866 0 ac97_bus 714 1 snd_ac97_codec knoppix@Microknoppix:~$ sudo lsmod Module Size Used by ipv6 196975 10 parport_pc 24132 0 ppdev 4117 0 lp 6119 0 parport 20814 3 parport_pc,ppdev,lp snd_usb_audio 57808 0 snd_hwdep 3950 1 snd_usb_audio tpm_tis 5261 0 snd_usbmidi_lib 12490 1 snd_usb_audio snd_seq_midi 3200 0 tpm 7773 1 tpm_tis snd_rawmidi 12467 2 snd_usbmidi_lib,snd_seq_midi tpm_bios 3347 1 tpm hp_wmi 4393 0 ac 2215 0 battery 7656 0 option 12650 0 usb_wwan 6011 1 option usbserial 21327 2 option,usb_wwan 8139too 14396 0 snd_atiixp_modem 6535 0 sdhci_pci 4801 0 8250_pci 19272 0 8139cp 12900 0 tifm_7xx1 3030 0 sdhci 11970 1 sdhci_pci pcmcia 24250 0 tifm_core 3258 1 tifm_7xx1 mmc_core 43452 1 sdhci mii 2694 2 8139too,8139cp 8250 14974 1 8250_pci snd_atiixp 8993 1 ohci1394 20984 0 yenta_socket 15616 0 ieee1394 51946 1 ohci1394 serial_core 12542 1 8250 i2c_piix4 6580 0 snd_ac97_codec 77637 2 snd_atiixp_modem,snd_atiixp k8temp 2407 0 joydev 6866 0 ac97_bus 714 1 snd_ac97_codec knoppix@Microknoppix:~$

Code:

knoppix@Microknoppix:~$ sudo iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off knoppix@Microknoppix:~$

Wifi is Dead-on-arrival w/6.7.1 liveCD:

Code:

knoppix@Microknoppix:~$ sudo modprobe -a ssb knoppix@Microknoppix:~$ sudo modprobe -a b43 WARNING: Module b43 not found. knoppix@Microknoppix:~$

Can someone show in the Debian-Knoppix 6.7.1 open source code
where things related to this bug changed from 6.4.3?

Reply requested, please . . .
04-18-2012, 07:13 PM
klaus2008

What are the kernel versions of Knoppix 6.4.3 and 6.7.1? The command

Code:

uname -a

will show you the details.
04-18-2012, 07:31 PM
utu

@ luther

You've done your job well.
Now we need to find out where the wifi hardware discovery code is
and find someone who can read it.

Also, we need to identify this thread to pertain specifically to Broadcom 4318.
04-18-2012, 08:57 PM
luther

Kernel Version of Knoppix 6.4.3

Quote:

Originally Posted by klaus2008

What are the kernel versions of Knoppix 6.4.3 and 6.7.1? The command

Code:

uname -a

will show you the details.

Code:

knoppix@Microknoppix:~$ sudo uname -a Linux Microknoppix 2.6.36.1 #10 SMP PREEMPT Fri Nov 26 10:33:59 CET 2010 i686 GNU/Linux knoppix@Microknoppix:~$

* sent w/Knoppix 6.4.3 & Iceweasel
04-18-2012, 09:15 PM
luther

Kernel Version of Knoppix 6.7.1

Quote:

Originally Posted by klaus2008

What are the kernel versions of Knoppix 6.4.3 and 6.7.1? The command

Code:

uname -a

will show you the details.

Code:

knoppix@Microknoppix:~$ sudo uname -a Linux Microknoppix 3.0.4 #12 SMP PREEMPT Thu Sep 8 05:27:05 CEST 2011 i686 GNU/Linux knoppix@Microknoppix:~$

** sent w/Knoppix 6.7.1 LiveCD

Yours,
luther
04-18-2012, 10:06 PM
luther

1 Attachment(s)

Chipsets Involved

Quote:

Originally Posted by utu

we need to identify this thread to pertain specifically to Broadcom 4318.

The maintainer says this driver supports these chipsets:
BCM4306/3
BCM4311
BCM4312
BCM4318
* SEE ATTACHMENT
Attachment 97
04-18-2012, 10:19 PM
klaus2008

If you read the kernel configuration file /boot/config-3.0.4 of Knoppix 6.7.1 you will find the line

Quote:

# CONFIG_B43 is not set

That means the needed kernel module was not built. I think that you must build your own Linux kernel with enabled support for your chipset if you want to use your BCM4318 with Knoppix 6.7.1.
04-18-2012, 11:23 PM
utu

Greetings, klaus2008

Are you able to determine why the b43 driver was not
provided as well as the wl driver?

For example, has a simple blacklist caused this not to happen?
Note, BOTH b43 and wl were included in the earlier Knoppix.

As an alternative line of inquiry, where might we find the code that
sets up wl and provides it, and is this code readable bash or
binary?

Thanks.
04-19-2012, 12:25 AM
luther

B43 kernel module was not even built

Quote:

Originally Posted by klaus2008

If you read the kernel configuration file /boot/config-3.0.4 of Knoppix 6.7.1 you will find the line That means the needed kernel module was not built. I think that you must build your own Linux kernel with enabled support for your chipset if you want to use your BCM4318 with Knoppix 6.7.1.

Dear klaus2008: I'm reading between the lines and suspect it was done on purpose. Could it possibly have opened the door to Pandora's Box? This being the case, suspect knoppix 7.0 is in the same boat. I would like a confirmation, please? THX luther

:?:
04-19-2012, 12:47 AM
utu

@ luther & others

Klaus K confirms our suspicions, and luther's homework and is aware of our concerns.
We can probably expect some of his comments and/or remedy sometime in the future.
One might assume Knoppix 7 and his day job probably are keeping him pretty busy
for the moment.

Still, I am tantalized that we see ssb but not b43 in 6.7.1.
It feels like some simple, misplaced blacklist might yet explain it all.

Cheers.

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