Messages in this thread | | | Subject | Re: [alsa-devel] [RFC] [ALSA][CONTROL] Added 2 ioctls for reading/writing values of multiple controls in one go (at once) | From | Clemens Ladisch <> | Date | Thu, 2 Feb 2017 18:22:43 +0100 |
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Satendra Singh Thakur wrote: > -Added an ioctl to read values of multiple elements at once > -Added an ioctl to write values of multiple elements at once > -In the absence of above ioctls user needs to call N ioctls to > read/write value of N elements which requires N context switches
And why are these N context switches a problem?
> -Above mentioned ioctl will be useful for alsa utils such as amixer > which reads all controls of given sound card
Is there a noticeable difference?
Regards, Clemens
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