Galileo TriMix / IrDA

[William Perry]

I installed Ubuntu on a physical machine last night and it had absolutely
no problems reading the dives off of the computer using 'universal -b
smart' -- had to have irattach running to fully plumb everything, but
everything seems to download.  I will try throwing ubuntu on VirtualBox and
see if it has the same issues talking to the adapter.

Tried 3 different adapters down at the SCUBA shop yesterday to no avail -
they all used the mcs7780 chipset and none worked in the linux VM but all
worked in a Windows 7 VM.  Strange.

-bill

On Tue, Apr 30, 2013 at 2:40 PM, Jef Driesen <jefdriesen at telenet.be> wrote:

> On 30-04-13 14:39, William Perry wrote:
>
>> I am looking at switching to Subsurface so that I can just keep a linux VM
>> floating around to download dives from my Galileo (Trimix) instead of a
>> Windows VM and the 'fabulous' SmarTrak software from ScubaPro.  I am
>> running
>> this Ubuntu 13.04 VM in Parallels 8 at the moment and am having issues
>> getting this to download anything at all with a generic mcs7780 USB
>> adapter.
>> I expect it is an issue with the low-level IR stack, but the IRDA
>> documentation leaves a bit to be desired.
>>
>
> You are running Linux in a VM? Maybe that's part of the problem. Usually
> running in a VM works fine, but in some cases it doesn't. Have you tried on
> a real machine?
>
> Can you send the output of libdivecomputer's smart test app? That might
> give us a clue where it fails. Does it fail opening the irda socket, during
> device discovery, or during the actual communication?
>
>
>  The irda0 driver gets loaded successfully and I have modified
>> /etc/default/irda-utils to set
>> DEVICE=irda0
>> AUTOMATIC=true
>> DISCOVERY=true
>>
>> And irattach gets launched successfully when I plug in the USB device,
>> but it
>> just spits out this:
>>
>> Apr 30 08:20:36 bplinux irattach: Starting device irda0
>> Apr 30 08:20:36 bplinux irattach: ioctl(SIOCSIFFLAGS): Broken pipe
>> Apr 30 08:20:36 bplinux irattach: Stopping device irda0
>> Apr 30 08:20:36 bplinux irattach: exiting …
>>
>> And then dies.  'ifconfig -a' shows the irda0 adapter still, and lsusb is
>> showing the correct chip manufacturer / identifying information: Bus 002
>> Device 005: ID 9710:7780 MosChip Semiconductor MCS7780 4Mbps Fast IrDA
>> Adapter
>>
>
> I'm not sure if ifconfig is supposed to show the irda adapter. Maybe your
> system tries to use the irda adapter as a network interface, and that's why
> libdivecomputer fails to talk to it?
>
> There was a similar report recently (although with another chipset), where
> the irda interface was used by the usbserial (or ir_usb?) module, and I
> believe unloading that made it work. As was already pointed out in one of
> the other replies, you don't need a /dev/ttyUSB0 entry at all.
>
>
>  But I get no joy trying to import from Subsurface, or from a quick test
>> program I wrote to talk directly to libdivecomputer.  This is actually the
>> first time in 20 years of using and developing software on Linux that I
>> have
>> tried to get IrDA working.  Am I missing something very basic here?  I was
>> able to download the dives into SmarTrak in windows so I don't think I
>> have a
>> hardware issue, but the adapter is ~6 years old and has had a few
>> accidents,
>> perhaps the windows drivers are a bit more forgiving?
>>
>
> When you say downloading works in Windows, was that recently, or long time
> ago? On a real machine, or also in a VM?
>
> Jef
>
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