Merge branch 'remotes/lorenzo/pci/tegra194'
[linux-2.6-microblaze.git] / Documentation / ABI / testing / sysfs-module
1 What:           /sys/module/pch_phub/drivers/.../pch_mac
2 Date:           August 2010
3 KernelVersion:  2.6.35
4 Contact:        masa-korg@dsn.okisemi.com
5 Description:    Write/read GbE MAC address.
6
7 What:           /sys/module/pch_phub/drivers/.../pch_firmware
8 Date:           August 2010
9 KernelVersion:  2.6.35
10 Contact:        masa-korg@dsn.okisemi.com
11 Description:    Write/read Option ROM data.
12
13
14 What:           /sys/module/ehci_hcd/drivers/.../uframe_periodic_max
15 Date:           July 2011
16 KernelVersion:  3.1
17 Contact:        Kirill Smelkov <kirr@mns.spb.ru>
18 Description:    Maximum time allowed for periodic transfers per microframe (μs)
19
20                 Note:
21                   USB 2.0 sets maximum allowed time for periodic transfers per
22                   microframe to be 80%, that is 100 microseconds out of 125
23                   microseconds (full microframe).
24
25                   However there are cases, when 80% max isochronous bandwidth is
26                   too limiting. For example two video streams could require 110
27                   microseconds of isochronous bandwidth per microframe to work
28                   together.
29
30                 Through this setting it is possible to raise the limit so that
31                 the host controller would allow allocating more than 100
32                 microseconds of periodic bandwidth per microframe.
33
34                 Beware, non-standard modes are usually not thoroughly tested by
35                 hardware designers, and the hardware can malfunction when this
36                 setting differ from default 100.
37
38 What:           /sys/module/*/{coresize,initsize}
39 Date:           Jan 2012
40 KernelVersion:  3.3
41 Contact:        Kay Sievers <kay.sievers@vrfy.org>
42 Description:    Module size in bytes.
43
44 What:           /sys/module/*/taint
45 Date:           Jan 2012
46 KernelVersion:  3.3
47 Contact:        Kay Sievers <kay.sievers@vrfy.org>
48 Description:    Module taint flags:
49                         ==  =====================
50                         P   proprietary module
51                         O   out-of-tree module
52                         F   force-loaded module
53                         C   staging driver module
54                         E   unsigned module
55                         ==  =====================