[alsa-devel] [PATCH v2 1/4] ALSA: hda - add flags and routines to get devices selection info for DP1.2 MST

Takashi Iwai tiwai at suse.de
Tue Aug 27 12:16:51 CEST 2013


At Tue, 27 Aug 2013 08:41:43 +0000,
Lin, Mengdong wrote:
> 
> Hi Takashi,
> 
> I revised the patches to use u8 to contain the raw value of device list entry. Please review.

Thanks, applied all patches now.


Takashi


> 
> Thanks
> Mengdong
> 
> > -----Original Message-----
> > From: Takashi Iwai [mailto:tiwai at suse.de]
> > Sent: Tuesday, August 27, 2013 2:07 PM
> > To: Lin, Mengdong
> > Cc: alsa-devel at alsa-project.org
> > Subject: Re: [PATCH v2 1/4] ALSA: hda - add flags and routines to get devices
> > selection info for DP1.2 MST
> > 
> > At Tue, 27 Aug 2013 03:16:50 +0000,
> > Lin, Mengdong wrote:
> > >
> > > Hi Takashi,
> > >
> > > > -----Original Message-----
> > > > From: Takashi Iwai [mailto:tiwai at suse.de]
> > > > Sent: Monday, August 26, 2013 8:44 PM
> > > > >
> > > > > +/* display pin's device list entry */ struct  hda_devlist_entry {
> > > > > +	unsigned int present_detect:1;
> > > > > +	unsigned int eld_valid:1;
> > > > > +	unsigned int inactive:1;
> > > > > +};
> > > >
> > > > Can't it be simply an unsigned int containing the raw value?
> > > > You defined the bit flag in the above, and copying the bit field
> > > > from/to the bit flag looks redundant.
> > > >
> > >
> > > How about using "u8"?
> > > Since each device entry is only 4 bits in the response to "Get Device List
> > Entry" Control.
> > 
> > Yeah, u8 should be fine.
> > 
> > 
> > Takashi
> 


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