get_parent_with_subsystem

Description:

public Device? get_parent_with_subsystem (string subsystem, string? devtype)

Walks up the chain of parents of this and returns the first device encountered where subsystem and devtype matches, if any.

this	A Device.
subsystem	The subsystem of the parent to get.
devtype	The devtype of the parent to get or `null`.

A Device or null if this has no parent with subsystem and devtype. Free with unref.