Frame Buffer Power Management

Some devices, such as certain tape drives and frame buffers, should not lose power, even in a power cycle, when their drivers are detached. A new interface, ddi_removing_power, checks whether a device loses power as a result of a suspend operation. A new property, no-involuntary-power-cycles, can be specified to ensure that the device is not powered down unintentionally.

For more information, see the ddi_removing_power(9F) and no-involuntary-power-cycles(9P) man pages.