So you didn't have to change group permission from dialout to tty?  That 
is leftover from my ubuntu 7.04 days.  I'm still on Ubuntu 8.10 for 2 
more months.

Paul Alfille wrote:
> LinkUSB progress. Most of the problems are operating system ones.
>
> In short I needed 2 changes:
>
> 1. Minor change in the code to recognize the internal version number
> (LinkUSB V!.4) -- now in CVS and will be part of next release.
>
> 2. When it works, it works as both a LINK adapter (which needs the
> change above) and as an emulated DS9097U adapter.
>
> 3. Some linux kernel modules for the FTDI USB/serial are broken. I'm
> not sure whether it's the 64-bit kernel in general, or just the
> OpenSUSE 2.6.25.20. Other versions of 32-bit SUSE work. Ubuntu 9.04
> 32-bit works. but only for a while.
>
> Ubuntu module eventually failed after several hours of function with
> this entry in dmesg:
>
> BUG: unable to handle kernel NULL pointer dereference at 00000054
> IP: [<c0132239>] lock_timer_base+0x8/0x35
> *pdpt = 0000000008523001 *pde = 0000000000000000
> Oops: 0000 [#1] SMP
> last sysfs file:
> /sys/devices/pci0000:00/0000:00:14.0/0000:02:0f.0/usb1/1-2/1-2.2/1-2.2:1.0/ttyUSB1/port_number
> Modules linked in: ftdi_sio usbserial ip6t_LOG xt_tcpudp xt_pkttype
> ipt_LOG xt_limit binfmt_misc af_packet ip6t_REJECT nf_conntrack_ipv6
> ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter
> ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack
> ip_tables ip6table_filter ip6_tables x_tables ipv6 microcode fuse loop
> dm_mod usb_storage rtc_cmos rtc_core rtc_lib e100 intel_agp pcspkr
> i2c_piix4 mii shpchp sr_mod agpgart cdrom i2c_core pci_hotplug sg
> ehci_hcd ohci_hcd uhci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache
> jbd thermal_sys hwmon ide_pci_generic piix ide_core ata_generic
> ata_piix libata scsi_mod dock [last unloaded: speedstep_lib]
> Supported: No
>
> Pid: 24764, comm: owhttpd Tainted: G          (2.6.27.23-0.1-pae #1)
> EIP: 0060:[<c0132239>] EFLAGS: 00210282 CPU: 0
> EIP is at lock_timer_base+0x8/0x35
> EAX: 00000040 EBX: 00000040 ECX: e0198260 EDX: c125fe64
> ESI: ffffffff EDI: 00000040 EBP: c125fe64 ESP: c125fe50
>  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> Process owhttpd (pid: 24764, ti=c125e000 task=c8113230 task.ti=c125e000)
> Stack: 00000040 ffffffff 00000000 d0c9dc4c c0132277 c0144614 00000040 00000000
>        c01322ba d0c9dc00 e2add0cb e1d395b4 c100b160 c05e013c 00000000 c125ff08
>        00000000 c01449c6 e2ae6458 d0c9dc00 d640f920 e2abe79d c019c1a4 ffffffff
> Call Trace:
>  [<c0132277>] try_to_del_timer_sync+0x11/0x4a
>  [<c01322ba>] del_timer_sync+0xa/0x14
>  [<e2add0cb>] ftdi_close+0xc9/0xec [ftdi_sio]
>  [<e2abe79d>] serial_close+0x8d/0x124 [usbserial]
>  [<c028f4a2>] release_dev+0x1a6/0x441
>  [<c028f822>] tty_release+0xf/0x18
>  [<c0192f7d>] __fput+0x93/0x144
>  [<c0190690>] filp_close+0x51/0x58
>  [<c01906fe>] sys_close+0x67/0x9e
>  [<c01049ad>] sysenter_do_call+0x12/0x21
>  [<ffffe430>] 0xffffe430
>  =======================
> Code: b0 01 03 04 24 89 04 24 8b 44 24 10 39 04 24 78 07 8b 44 24 10
> 89 04 24 8b 04 24 83 c4 24 5b 5e 5f 5d c3 55 89 d5 57 89 c7 56 53 <8b>
> 5f 14 89 de 83 e6 fe 74 1f 89 f0 e8 4d 78 21 00 89 45 00 3b
> EIP: [<c0132239>] lock_timer_base+0x8/0x35 SS:ESP 0068:c125fe50
> ---[ end trace e29443134a87c4ee ]---
>
> So I think that we'll need to find the driver problem and get it
> patched upstream. That means we'll need to generate a table of
> working/non-working setups.
>
> Paul Alfille
>
>
>
>
>
> It works (with minor tweaking) on most platforms. On the initial test
> machine (OpenSUSE with 2.6.25.20 kernel, 64bit) the driver doesn't
> work. On Suse 10.2
>
> On Wed, Jul 29, 2009 at 2:19 AM, William Brown<mahi...@earthlink.net> wrote:
>   
>> Paul
>>
>> Can you keep us updated about your progress with the linkusb.  I have an
>> interest in using one too.
>>
>> Paul Alfille wrote:
>>     
>>> Has anyone had success with the LinkUSB under linux?
>>>
>>> I just purchased one, and see this entry in dmesg:
>>>
>>> usb 1-2.3: new full speed USB device using uhci_hcd and address 5
>>> usb 1-2.3: configuration #1 chosen from 1 choice
>>> ftdi_sio 1-2.3:1.0: FTDI USB Serial Device converter detected
>>> drivers/usb/serial/ftdi_sio.c: Detected FT232RL
>>> usb 1-2.3: FTDI USB Serial Device converter now attached to ttyUSB0
>>> usb 1-2.3: New USB device found, idVendor=0403, idProduct=6001
>>> usb 1-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
>>> usb 1-2.3: Product: FT232R USB UART
>>> usb 1-2.3: Manufacturer: FTDI
>>> usb 1-2.3: SerialNumber: A900a3Z7
>>>
>>> None the less, I can't talk even with a simple serial communication program.
>>>
>>> For control, I can talk to a standard LINK on /dev/ttyS0.
>>>
>>> uname -a:
>>> Linux amd64 2.6.25.20-0.4-default #1 SMP 2009-06-01 09:57:12 +0200
>>> i686 athlon i386 GNU/Linux
>>>
>>> Paul Alfille
>>>
>>> ------------------------------------------------------------------------------
>>> _______________________________________________
>>> Owfs-developers mailing list
>>> Owfs-developers@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers
>>>
>>>
>>>       
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