> Something has to trigger an interrupt (or the user types a command) > indicating that new hardware has been added. The driver of that device > can modify the device tree. The rescan of the device tree will cause > the i2c modules to automatically load. This shouldn't require any > changes to the current i2c sub-system.
As I understood it so far, the purpose of the devicetree is done as soon it is presented to the linux-kernel and once parsed during boot. Changing it at runtime and reacting to that looks like a bigger step to me. Hints for that are that most fdt-functions are __init and I couldn't quickly find an add_node-function... Shouldn't really matter anyhow, should it? As soon as we are run-time, there shouldn't be any difference between DTS and platform_devices. It is just driver-model then... -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ |
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