arch/s390/common_io.rst

19   The given devices will be ignored by the common I/O-layer; no detection
24   An ignored device can be un-ignored later; see the "/proc entries"-section for
51   By default, no devices are ignored.
59   Lists the ranges of devices (by bus id) which are ignored by common I/O.
62   "free all" will un-ignore all ignored devices,
66   For example, if devices 0.0.0023 to 0.0.0042 and 0.0.4711 are ignored,
70     to 0.0.002f, 0.0.0033 to 0.0.0042 and 0.0.4711 ignored;
73   - echo free all > /proc/cio_ignore will un-ignore all remaining ignored
76   When a device is un-ignored, device recognition and sensing is performed and
80   You can also add ranges of devices to be ignored by piping to
85 	ignored, there will be no effect on then. However, if such a device
86 	disappears and then reappears, it will then be ignored. To make
93   will add 0.0.a000-0.0.accc and 0.0.af00-0.0.afff to the list of ignored
96   You can remove already known but now ignored devices via::
100   All devices ignored but still registered and not online (= not in use)