I installed MC77xx about three years ago into OpenBSD driven machine. It
actively uses everyday with msm mode driver. The question was how to
detect UMB and MSM devices and attach suitable driver simultaneously
(msm + umb) for single device according to USB descriptors for each
possible mode of MC77xx card.

I haven't track any repository changes since than and use 7304 in MSM
modes only to have WWAN access and NMEA GPS ports simultaneously, but
years ago I wanted to use it as UMB device + NMEA.

The USB descriptors for all modes of MC7304 and MC7455 are attached.

Both cards are used actively so I can test any changes if needed.

Denis

On 2/5/2020 2:40 PM, leeb wrote:
> Hmmm. I got mine used off an auction site but unfortunately updated 
> the firmware before installing OpenBSD on this machine. No help there,
> sorry. Though the latest firmware wasn't all that recent IIRC.
> 
> Not made any other changes to it apart from that though.
> 
> Happy to help out with any testing etc. if needed.
> 
> 
> On Wed, Feb 05, 2020 at 05:55:41AM -0700, Theo de Raadt wrote:
>> Well, I have been given this particilular MC7700 which works as umsm,
>> but it does *NOT* match as umb, probably because it's firmware is too
>> old?  Or it is in the wrong mode, I can't tell.
>>
>> The alternative is that the device cannot attach at all.
>>
>> How does this get resolved?  I can dig it up and show in a few days.
>>
> 

Attachment: usb-descriptors.tar.gz
Description: application/gzip

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