1 What: /sys/bus/css/devices/.../type
2 Date: March 2008
3 Contact: linux-s390@vger.kernel.org
4 Description: Contains the subchannel type,
5 This attribute is present for
6
7 What: /sys/bus/css/devices/.../modal
8 Date: March 2008
9 Contact: linux-s390@vger.kernel.org
10 Description: Contains the module alias as r
11 It is of the format css:t<type
12 subchannel types.
13
14 What: /sys/bus/css/drivers/io_subcha
15 Date: December 2002
16 Contact: linux-s390@vger.kernel.org
17 Description: Contains the ids of the channe
18 subchannel, as reported by the
19 during subchannel recognition.
20
21 Note: This is an I/O-subchanne
22 Users: s390-tools, HAL
23
24 What: /sys/bus/css/drivers/io_subcha
25 Date: December 2002
26 Contact: linux-s390@vger.kernel.org
27 Description: Contains the PIM/PAM/POM value
28 channel subsystem when last qu
29 layer (this implies that this
30 in sync with the values curren
31
32 Note: This is an I/O-subchanne
33 Users: s390-tools, HAL
34
35 What: /sys/bus/css/devices/.../drive
36 Date: June 2019
37 Contact: linux-s390@vger.kernel.org
38 Description: This file allows the driver fo
39 specified, only a driver with
40 to driver_override will have a
41 device. The override is specif
42 driver_override file (echo vfi
43 may be cleared with an empty s
44 This returns the device to sta
45 Writing to driver_override doe
46 device from its current driver
47 automatically load the specifi
48 matching name is currently loa
49 will not bind to any driver.
50 opt-out of driver binding usin
51 "none". Only a single driver
52 there is no support for parsin
53
54 Note that unlike the mechanism
55 file does not allow to overrid
56 the driver must still match th
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