[alsa-devel] MOTU Midi Express XT

[holger at dehnhardt.org]

28. Oktober 2016 09:51 Uhr, holger at dehnhardt.org schrieb:
> 27. Oktober 2016 18:22 Uhr, holger at dehnhardt.org schrieb:
> 
>> 27. Oktober 2016 08:42 Uhr, "Clemens Ladisch" <clemens at ladisch.de> schrieb:
>> 
>>> holger at dehnhardt.org wrote:
>>> 
>>>> I own a MOTU Midi Express XT 8x8 interface which is connected through the parallel port. Recently
>>>> I upgraded my system and the new motherboard does not have an ISA parallel port anymore...
>>>> So I bought a PCI parallel port extension card
>>> 
>>> Does it happen to have a name? Is it compatible with the ISA parallel port?
>>> 
>>> Regards,
>>> Clemens
>> 
>> Ok, this is the lspci output for the card:
>> 
>> 06:00.0 Parallel controller: MosChip Semiconductor Technology Ltd. Device 9900 (prog-if 03
>> [IEEE1284])
>> Subsystem: Device a000:2000
>> Flags: bus master, fast devsel, latency 0, IRQ 10
>> I/O ports at b010 [size=8]
>> I/O ports at b000 [size=8]
>> Memory at fe201000 (32-bit, non-prefetchable) [size=4K]
>> Memory at fe200000 (32-bit, non-prefetchable) [size=4K]
>> Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
>> Capabilities: [78] Power Management version 3
>> Capabilities: [80] Express Legacy Endpoint, MSI 00
>> Capabilities: [100] Virtual Channel
>> Capabilities: [800] Advanced Error Reporting
>> 
>> The card is the following:
>> https://www.conrad.de/de/1-port-serielle-steckkarte-pcie-972542.html
>> 
>> Can such a card be compatible with an ISA-Port?
>> 
>> Holger
> 
> I made a new observation. When loading the driver the PC-port LED blinks. At line 339 function
> snd_mtpav_portscan some bytes are send to the device. This seems to work - which means the
> communication between the PC and the device seems to work.
> 
> But why is the driver loaded but not registered?
> 
> Holger
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As the driver is loaded and gives no error while loading, is there a way to investigate, why no alsa device is shown? 
Can I provide some more useful information? 

Holger