xref: /OK3568_Linux_fs/kernel/Documentation/ABI/testing/sysfs-module (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunWhat:		/sys/module/pch_phub/drivers/.../pch_mac
2*4882a593SmuzhiyunDate:		August 2010
3*4882a593SmuzhiyunKernelVersion:	2.6.35
4*4882a593SmuzhiyunContact:	masa-korg@dsn.okisemi.com
5*4882a593SmuzhiyunDescription:	Write/read GbE MAC address.
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunWhat:		/sys/module/pch_phub/drivers/.../pch_firmware
8*4882a593SmuzhiyunDate:		August 2010
9*4882a593SmuzhiyunKernelVersion:	2.6.35
10*4882a593SmuzhiyunContact:	masa-korg@dsn.okisemi.com
11*4882a593SmuzhiyunDescription:	Write/read Option ROM data.
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun
14*4882a593SmuzhiyunWhat:		/sys/module/ehci_hcd/drivers/.../uframe_periodic_max
15*4882a593SmuzhiyunDate:		July 2011
16*4882a593SmuzhiyunKernelVersion:	3.1
17*4882a593SmuzhiyunContact:	Kirill Smelkov <kirr@mns.spb.ru>
18*4882a593SmuzhiyunDescription:	Maximum time allowed for periodic transfers per microframe (μs)
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun		Note:
21*4882a593Smuzhiyun		  USB 2.0 sets maximum allowed time for periodic transfers per
22*4882a593Smuzhiyun		  microframe to be 80%, that is 100 microseconds out of 125
23*4882a593Smuzhiyun		  microseconds (full microframe).
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun		  However there are cases, when 80% max isochronous bandwidth is
26*4882a593Smuzhiyun		  too limiting. For example two video streams could require 110
27*4882a593Smuzhiyun		  microseconds of isochronous bandwidth per microframe to work
28*4882a593Smuzhiyun		  together.
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun		Through this setting it is possible to raise the limit so that
31*4882a593Smuzhiyun		the host controller would allow allocating more than 100
32*4882a593Smuzhiyun		microseconds of periodic bandwidth per microframe.
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun		Beware, non-standard modes are usually not thoroughly tested by
35*4882a593Smuzhiyun		hardware designers, and the hardware can malfunction when this
36*4882a593Smuzhiyun		setting differ from default 100.
37*4882a593Smuzhiyun
38*4882a593SmuzhiyunWhat:		/sys/module/*/{coresize,initsize}
39*4882a593SmuzhiyunDate:		Jan 2012
40*4882a593SmuzhiyunKernelVersion:»·3.3
41*4882a593SmuzhiyunContact:	Kay Sievers <kay.sievers@vrfy.org>
42*4882a593SmuzhiyunDescription:	Module size in bytes.
43*4882a593Smuzhiyun
44*4882a593SmuzhiyunWhat:		/sys/module/*/taint
45*4882a593SmuzhiyunDate:		Jan 2012
46*4882a593SmuzhiyunKernelVersion:»·3.3
47*4882a593SmuzhiyunContact:	Kay Sievers <kay.sievers@vrfy.org>
48*4882a593SmuzhiyunDescription:	Module taint flags:
49*4882a593Smuzhiyun			==  =====================
50*4882a593Smuzhiyun			P   proprietary module
51*4882a593Smuzhiyun			O   out-of-tree module
52*4882a593Smuzhiyun			F   force-loaded module
53*4882a593Smuzhiyun			C   staging driver module
54*4882a593Smuzhiyun			E   unsigned module
55*4882a593Smuzhiyun			==  =====================
56