[alsa-devel] [PATCH 9/9] ctl: add test program for control element set

[Takashi Iwai]

On Wed, 15 Jun 2016 16:57:45 +0200,
Takashi Sakamoto wrote:
> 
> The feature of control element set has been abandoned for a long time since
> firstly introduced in 2003 (approx). Furthermore, there's few applications
> to utilize this feature. These situations bring a hard work to the persons
> who need the feature. Especially, a lack of test program make it harder to
> fix much bugs in this feature.
> 
> This commit adds a test program as a sample of the feature. This program
> adds element sets of each element type to 'hw:0' in this order; boolean,
> integer, enumerated, bytes, IEC958 and integer64. Each iteration includes
> below scheme:
> 
> 1. add an element set with 900 elements. Each of them has maximum number
>    of members allowed by ALSA ctl core.
> 2. check all of events generated by above operation.
> 3. retrieve information of each element, then validate it.
> 4. unlock each member of all elements because they're initially locked.
> 5. write to all of members in all elements and read.
> 6. check all of events generated by above operation.
> 7. write information for threshold level to the element set and read it.
> 8. check all of events generated by above operation.
> 9. remove the element set.
> 10.check all of events generated by above operation.
> 
> When any of these operations fail, it means regression occurs. Then, added
> elements still remain in a certain sound card. In this case, unloading
> drivers corresponding to the card is an easy way to recover.
> 
> Besides, this program doesn't perform below element operations of ALSA ctl
> feature:
>  - list
>  - lock
>  - replace
> 
> Signed-off-by: Takashi Sakamoto <o-takashi at sakamocchi.jp>

The contents are good, but could you reformat it in kernel coding
style, i.e. with a hard tab and indent level 8?  We aren't so strict
in alsa user-space stuff, but it's still better to have some unified
style.

I already applied all other patches, so just resubmit only this one.


thanks,

Takashi