[alsa-devel] [PATCH 1/5] ALSA: hda: add verbs for stripe control

Takashi Iwai tiwai at suse.de
Fri Jan 11 12:47:08 CET 2019


On Fri, 11 Jan 2019 12:30:34 +0100,
Sameer Pujar wrote:
> 
> 
> On 1/11/2019 4:52 PM, Takashi Iwai wrote:
> > On Thu, 10 Jan 2019 18:03:21 +0100,
> > Sameer Pujar wrote:
> >> Controllers can support multiple Serial Data Out(SDO) lines, for
> >> extended outbound bandwidth, to pump data to all codecs on the link.
> >> Codecs can sample data present on SDO.
> >>
> >> Add verbs AC_VERB_GET_STRIPE_CONTROL and AC_VERB_SET_STRIPE_CONTROL
> >> These can be used to program usage of SDO lines for codec.
> >>
> >> Signed-off-by: Sameer Pujar <spujar at nvidia.com>
> >> Reviewed-by: Mohan Kumar D <mkumard at nvidia.com>
> >> Reviewed-by: Ravindra Lokhande <rlokhande at nvidia.com>
> > Could you put a cover letter at the next submission?
> 
> Sorry for the naive question.
> Could you please point me to a reference how cover letter for a patch
> should look like?

An easy way would be to create it via git format-patch --cover-letter
option.  Then describe what this patchset provides, and more
importantly, why this is needed.  More background that isn't included
in each patch description, or some additional notes, as well as the
information like what's different from the previous submission can be
put there.

Look through ML archives.  The post with "[PATCH 0/N]" is usually a
cover letter.

Also, for the second submission, don't forget to put a version number
to the subject prefix, e.g. [PATCH v2 0/5].


HTH,

Takashi


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