Hello Hans,

I've picked up work on the sur40 driver again recently. There is one major
feature left that is currently unsupported by the Linux driver, which is the
hardware-based calibration.

The internal device memory contains a table with two bytes for each sensor pixel
(i.e. 960x540x2 = 1036800 bytes) that basically provide individual black and
white levels per-pixel that are used in preprocessing. The table can either be
set externally, or the sensor can be covered with a black/white surface and a
custom command triggers an internal calibration.

AFAICT the usual V4L2 controls are unsuitable for this sort of data; do you have
any suggestions on how to approach this? Maybe something like a custom IOCTL?

Best regards, Florian

Attachment: signature.asc
Description: OpenPGP digital signature

Reply via email to