• Rafael J. Wysocki's avatar
    ACPI / scan: Introduce struct acpi_scan_handler · ca589f94
    Rafael J. Wysocki authored
    Introduce struct acpi_scan_handler for representing objects that
    will do configuration tasks depending on ACPI device nodes'
    hardware IDs (HIDs).
    
    Currently, those tasks are done either directly by the ACPI namespace
    scanning code or by ACPI device drivers designed specifically for
    this purpose.  None of the above is desirable, however, because
    doing that directly in the namespace scanning code makes that code
    overly complicated and difficult to follow and doing that in
    "special" device drivers leads to a great deal of confusion about
    their role and to confusing interactions with the driver core (for
    example, sysfs directories are created for those drivers, but they
    are completely unnecessary and only increase the kernel's memory
    footprint in vain).
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    Acked-by: default avatarYinghai Lu <yinghai@kernel.org>
    Acked-by: default avatarYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
    Acked-by: default avatarToshi Kani <toshi.kani@hp.com>
    ca589f94