Re: [PATCH/RFC 2.6.33-rc5 1/1] broadsheetfb: support storing

On Mon,  1 Feb 2010 18:35:08 +0800
Jaya Kumar [off-list ref] wrote:

This patch adds the ability to store waveforms to broadsheetfb. It uses the
firmware class to retrieve the waveform. The request to store the waveform
is triggered from a driver sysfs entry called loadstore_waveform. I
considered adding this to Documentation/ABI/testing/ but then decided against
it. It is not something I would expect a user to ever interact with. It
would be only useful for people doing platform bringup and other such dirty
activities. Also, I noticed it is not (yet?) common practice to document
sysfs entries for fbdev drivers in there. Please let me know your feedback.

Thanks,
jaya

This patch adds waveform storing capability to broadsheetfb. It uses the
firmware class to retrieve the waveform, and the request to initiate the
waveform storing is done via a driver sysfs entry, loadstore_waveform.

Please educate me: broadsheet is a framebuffer device, is it not?  What
does it mean to record a waveform into a framebuffer device?  In what
way will a user observe the waveform?  Is it audio?  From the patch it
appears that this mysterious device has flash memory too?

Mystified!