Hi Fred,
I managed to do a bit more digging with Ubuntu 10.04. On a stock install
with kernel 2.6.32-21-generic the comedi modules aren't actually installed
at all.
lspci -k shows:
02:0a.0 Class ffff: Measurement Computing PCI-DIO24 (rev 02)
However if I then install the gpio drivers and run depmod -a the same
command shows:
02:0a.0 Class ffff: Measurement Computing PCI-DIO24 (rev 02)
Kernel modules: gpio
Which seems like good news, unfortunately there is no /dev/gpio0 device.
I get the same errors in dmesg, I've attached a full cut and paste of
/var/log/messages that deal with the gpio problems just in case thats any
help to you.
I'm starting to think Ubuntu, GPIO and Riv aren't destined for each other
which is a shame as I'm still fighting JACK and Pulse on Debian. I might
have to do something drastic and try CentOS.
Anyway any heads up would be appreciated.
Regards,
Wayne
On Fri, 21 Oct 2011 20:16:02 +0100, Wayne Merricks
<[email protected]> wrote:
Maybe, I did start blacklisting comedi but had the same problems.
Interesting part is Debian Squeeze just works which also has comedi. As
far as I know Ubuntu doesn't mess with comedi but you still get the
error. I'll poke around if I get the chance.
On Fri, 21 Oct 2011 18:57:24 +0100, Fred Gleason
<[email protected]> wrote:
On Oct 21, 2011, at 13:47 57, Wayne Merricks wrote:
"kobject_add_internal failed for gpio with -EEXIST, don't try to
register things with the same name in the same directory."
Sounds like two drivers with the same name. COMEDI drivers, perhaps?
Cheers!
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| | Paravel
Systems |
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Oct 28 15:32:41 uburiv001 kernel: [ 13.594201] WARNING: at
/build/buildd/linux-2.6.32/fs/sysfs/dir.c:491 sysfs_add_one+0xa0/0x100()
Oct 28 15:32:41 uburiv001 kernel: [ 13.594207] Hardware name: DIM4400
Oct 28 15:32:41 uburiv001 kernel: [ 13.594211] sysfs: cannot create duplicate
filename '/class/gpio'
Oct 28 15:32:41 uburiv001 kernel: [ 13.594215] Modules linked in: gpio(+)
psmouse(+) soundcore serio_raw parport_pc(+) agpgart shpchp lp parport e100 mii
floppy usbhid hid
Oct 28 15:32:41 uburiv001 kernel: [ 13.594239] Pid: 370, comm: modprobe Not
tainted 2.6.32-21-generic #32-Ubuntu
Oct 28 15:32:41 uburiv001 kernel: [ 13.594244] Call Trace:
Oct 28 15:32:41 uburiv001 kernel: [ 13.594256] [<c014c3d2>]
warn_slowpath_common+0x72/0xa0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594265] [<c025feb0>] ?
sysfs_add_one+0xa0/0x100
Oct 28 15:32:41 uburiv001 kernel: [ 13.594271] [<c025feb0>] ?
sysfs_add_one+0xa0/0x100
Oct 28 15:32:41 uburiv001 kernel: [ 13.594278] [<c014c44b>]
warn_slowpath_fmt+0x2b/0x30
Oct 28 15:32:41 uburiv001 kernel: [ 13.594285] [<c025feb0>]
sysfs_add_one+0xa0/0x100
Oct 28 15:32:41 uburiv001 kernel: [ 13.594292] [<c025ff5e>]
create_dir+0x4e/0x90
Oct 28 15:32:41 uburiv001 kernel: [ 13.594299] [<c025ffd0>]
sysfs_create_dir+0x30/0x50
Oct 28 15:32:41 uburiv001 kernel: [ 13.594308] [<c034be12>]
kobject_add_internal+0x92/0x1d0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594315] [<c0354503>] ?
kvasprintf+0x43/0x60
Oct 28 15:32:41 uburiv001 kernel: [ 13.594322] [<c034bf77>]
kset_register+0x27/0x50
Oct 28 15:32:41 uburiv001 kernel: [ 13.594330] [<c03e76a6>]
__class_register+0xd6/0x1c0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594337] [<c03e78b2>]
__class_create+0x72/0xa0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594352] [<f07de126>]
init_module+0x156/0x310 [gpio]
Oct 28 15:32:41 uburiv001 kernel: [ 13.594363] [<c01a7517>] ?
tracepoint_module_notify+0x27/0x30
Oct 28 15:32:41 uburiv001 kernel: [ 13.594372] [<c058dd63>] ?
notifier_call_chain+0x43/0x60
Oct 28 15:32:41 uburiv001 kernel: [ 13.594380] [<c0101131>]
do_one_initcall+0x31/0x190
Oct 28 15:32:41 uburiv001 kernel: [ 13.594390] [<f07ddfd0>] ?
init_module+0x0/0x310 [gpio]
Oct 28 15:32:41 uburiv001 kernel: [ 13.594400] [<c0182340>]
sys_init_module+0xb0/0x210
Oct 28 15:32:41 uburiv001 kernel: [ 13.594408] [<c01033ec>]
syscall_call+0x7/0xb
Oct 28 15:32:41 uburiv001 kernel: [ 13.594413] ---[ end trace
fa7c3906bbe08e8b ]---
Oct 28 15:32:41 uburiv001 kernel: [ 13.594492] Pid: 370, comm: modprobe
Tainted: G W 2.6.32-21-generic #32-Ubuntu
Oct 28 15:32:41 uburiv001 kernel: [ 13.594496] Call Trace:
Oct 28 15:32:41 uburiv001 kernel: [ 13.594505] [<c0588f42>] ?
printk+0x1d/0x23
Oct 28 15:32:41 uburiv001 kernel: [ 13.594512] [<c034bebc>]
kobject_add_internal+0x13c/0x1d0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594519] [<c034bf77>]
kset_register+0x27/0x50
Oct 28 15:32:41 uburiv001 kernel: [ 13.594525] [<c03e76a6>]
__class_register+0xd6/0x1c0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594531] [<c03e78b2>]
__class_create+0x72/0xa0
Oct 28 15:32:41 uburiv001 kernel: [ 13.594540] [<f07de126>]
init_module+0x156/0x310 [gpio]
Oct 28 15:32:41 uburiv001 kernel: [ 13.594549] [<c01a7517>] ?
tracepoint_module_notify+0x27/0x30
Oct 28 15:32:41 uburiv001 kernel: [ 13.594557] [<c058dd63>] ?
notifier_call_chain+0x43/0x60
Oct 28 15:32:41 uburiv001 kernel: [ 13.594564] [<c0101131>]
do_one_initcall+0x31/0x190
Oct 28 15:32:41 uburiv001 kernel: [ 13.594573] [<f07ddfd0>] ?
init_module+0x0/0x310 [gpio]
Oct 28 15:32:41 uburiv001 kernel: [ 13.594580] [<c0182340>]
sys_init_module+0xb0/0x210
Oct 28 15:32:41 uburiv001 kernel: [ 13.594587] [<c01033ec>]
syscall_call+0x7/0xb
Oct 28 15:32:41 uburiv001 kernel: [ 13.594645] Trying to free nonexistent
resource <00000000feaffc00-00000000feaffc7f>
Oct 28 15:32:41 uburiv001 kernel: [ 13.594651] Trying to free nonexistent
resource <0000000000000000-00000000ffffffff>
Oct 28 15:32:41 uburiv001 kernel: [ 13.594656] Trying to free nonexistent
resource <0000000000000000-00000000ffffffff>
Oct 28 15:32:41 uburiv001 kernel: [ 13.594660] Trying to free nonexistent
resource <0000000000000000-00000000ffffffff>
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