[linux-audio-user] Re: linux on laptop problem and devfs

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Subject: [linux-audio-user] Re: linux on laptop problem and devfs
From: m (m_AT_irixx.org)
Date: Fri Aug 23 2002 - 19:16:49 EEST

hi wes

thanks... that explains lots...
strange though, windows (ugh!) says that sound is on irq9, and thats
what i have in modules.conf ...
so that explains now why the modules are loading fine...

but i still dont have anything listed on irq9 when i do cat
/proc/interrupts...

i tried changing the settings in /etc/lilo.conf to append
"devfs=nomount" but no sound still, and my modem wouldnt work either
then!

here's some output gumph to make this a bit clearer....

thanx - m

[root_AT_hamish miriam]# cat /proc/interrupts
           CPU0
  0: 251333 XT-PIC timer
  1: 1932 XT-PIC keyboard
  2: 0 XT-PIC cascade
  3: 243141 XT-PIC serial
  5: 28 XT-PIC mwave_3780i
  7: 4 XT-PIC parport0
  8: 1 XT-PIC rtc
 11: 0 XT-PIC usb-uhci, Texas Instruments PCI1251A,
Texas Instruments PCI1251A (#2)
 12: 215081 XT-PIC PS/2 Mouse
 14: 15771 XT-PIC ide0
 15: 121 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0
MIS: 0
[root_AT_hamish miriam]# modprobe snd-cs4236
[root_AT_hamish miriam]# cat /proc/interrupts
           CPU0
  0: 253387 XT-PIC timer
  1: 1982 XT-PIC keyboard
  2: 0 XT-PIC cascade
  3: 243261 XT-PIC serial
  5: 28 XT-PIC mwave_3780i
  7: 4 XT-PIC parport0
  8: 1 XT-PIC rtc
 11: 0 XT-PIC usb-uhci, Texas Instruments PCI1251A,
Texas Instruments PCI1251A (#2)
 12: 215450 XT-PIC PS/2 Mouse
 14: 15802 XT-PIC ide0
 15: 121 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0
MIS: 0
[root_AT_hamish miriam]# lsmod
Module Size Used by Tainted: P
nls_iso8859-1 2816 1 (autoclean)
isofs 25792 1 (autoclean)
inflate_fs 19328 0 (autoclean) [isofs]
ppp_deflate 42240 0 (autoclean)
bsd_comp 4544 0 (autoclean)
ppp_async 6560 1 (autoclean)
ppp_generic 19880 3 (autoclean) [ppp_deflate bsd_comp
ppp_async]
slhc 5056 0 (autoclean) [ppp_generic]
mwave 31584 4
sg 30180 0 (autoclean) (unused)
st 27316 0 (autoclean) (unused)
sr_mod 15160 0 (autoclean) (unused)
sd_mod 11644 0 (autoclean) (unused)
scsi_mod 92488 4 (autoclean) [sg st sr_mod sd_mod]
autofs4 9252 2 (autoclean)
snd-pcm-oss 18816 0 (autoclean) (unused)
snd-pcm-plugin 16080 0 (autoclean) [snd-pcm-oss]
snd-mixer-oss 4704 0 (autoclean) [snd-pcm-oss]
snd-seq-oss 25600 0 (unused)
snd-seq-midi-event 3184 0 [snd-seq-oss]
snd-seq 40880 0 [snd-seq-oss snd-seq-midi-event]
snd-seq-device 3948 0 [snd-seq-oss snd-seq]
snd-cs4236 19872 0 (unused)
snd-cs4231 18592 0 [snd-cs4236]
snd-pcm 31616 0 [snd-pcm-oss snd-pcm-plugin
snd-cs4231]
snd-mixer 24328 0 [snd-mixer-oss snd-cs4236 snd-cs4231]
snd-timer 8576 0 [snd-seq snd-cs4231 snd-pcm]
snd 34272 0 [snd-pcm-oss snd-pcm-plugin
snd-mixer-oss snd-seq-oss snd-seq-midi-event snd-seq snd-seq-device
snd-cs4236 snd-cs4231 snd-pcm snd-mixer snd-timer]
soundcore 4068 2 [snd]
nfsd 69536 8 (autoclean)
lockd 49344 1 (autoclean) [nfsd]
sunrpc 62964 1 (autoclean) [nfsd lockd]
lp 6464 0
parport_pc 22088 1
parport 23968 1 [lp parport_pc]
ds 6848 2
yenta_socket 9344 2
pcmcia_core 41824 0 [ds yenta_socket]
af_packet 12488 0 (autoclean)
ip_vs 65400 0 (autoclean)
usb-uhci 21668 0 (unused)
usbcore 59072 1 [usb-uhci]
iptable_filter 1952 1 (autoclean)
ipt_MASQUERADE 1504 1 (autoclean)
iptable_nat 15988 1 [ipt_MASQUERADE]
ip_tables 11584 5 [iptable_filter ipt_MASQUERADE
iptable_nat]
ip_conntrack 15180 1 [ipt_MASQUERADE iptable_nat]
nls_iso8859-15 3360 1 (autoclean)
nls_cp850 3584 1 (autoclean)
vfat 9788 1 (autoclean)
fat 31384 0 (autoclean) [vfat]
rtc 5912 0 (autoclean)

> Message: 4
> Date: Fri, 23 Aug 2002 06:05:45 -0500
> From: wes schreiner <wes_AT_infosink.com>
> To: linux-audio-user_AT_music.columbia.edu
> Subject: Re: [linux-audio-user] Re: linux on laptop problem and devfs
> Reply-To: linux-audio-user_AT_music.columbia.edu
>
> m wrote:
>
> >but it just doesnt find a sound device in /proc/interrupts - the sound
> >modules load fine, but the kernel isnt seeing a sound device - a
> >thinkpad600E does share interrupts (and dsp i think) between the modem
> >and sound device on irq11 though...
> >
> >
> Sorry m, you got this one wrong. Sound on a 600E uses whatever
> interrupt you have it set to, and what you have it set to must match
> what you have in your modules.conf. The interrupt can be any of 5, 7,
> 9, 10, 11, or 15. Since this is an edge-triggered interrupt you can't
> have it shared with anything else, at least not with any other device
> that must operate at the same time. I have mine on 5. The mwave modem
> has to be on its own interrupts, I have mine on 4 and 10 (port and modem
> DSP). I can have sounds playing while using the modem.
>
> You can select the interrupts that your devices use with PS2.EXE under
> DOS or setpnp in a PNP-enabled kernel. PS2.EXE is perhaps easier to use.
>
> wes

> 

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iriXx
www.iriXx.org

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