> -----Original Message-----
> From: Bjørn Mork [mailto:bj...@mork.no]
> Sent: Tuesday, December 19, 2017 2:44 AM
> To: SZ Lin (林上智)
> Cc: Johan Hovold; Taiyi TY Wu (吳泰毅); Greg Kroah-Hartman;
> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] USB: serial: option: adding support for YUGA CLM920-NC5
> 
> Johan Hovold <jo...@kernel.org> writes:
> 
> >> +static const struct option_blacklist_info yuga_clm920_nc5_blacklist = {
> >> +  .reserved = BIT(0) | BIT(1) | BIT(4), };
> >
> > Do you really need to blacklist the first interface?
> 
> Good question. Interface #0 does look a lot like a Qualcomm DM/DIAG function, 
> based
> on two bulk endpoints, no additional descriptors and the fact that it is the 
> first interface.
> If so, then we do want a serial driver for it.  There is a basic libqcdm 
> implementation in
> ModemManager if you want to test it out.
> 

I have confirmed that interface #0 is QCDM/DIAG port in this module, and thus I 
will remove this from reserved list in next patch.
Furthermore, interface #1 is ADB port. Should I also remove this from reserved 
list?

> And I expect interface #4 is QMI/rmnet?  Feel free to confirm that assumption 
> with a
> patch against qmi_wwan :-)
> 
Yes, it is. I will send qmi_wwan patch by all means.
> 
> Bjørn

SZ

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