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-rw-r--r--Documentation/ABI/testing/sysfs-module17
1 files changed, 10 insertions, 7 deletions
diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module
index 0aac02e7fb0e..a485434d2a0f 100644
--- a/Documentation/ABI/testing/sysfs-module
+++ b/Documentation/ABI/testing/sysfs-module
@@ -17,14 +17,15 @@ KernelVersion: 3.1
Contact: Kirill Smelkov <kirr@mns.spb.ru>
Description: Maximum time allowed for periodic transfers per microframe (μs)
- [ USB 2.0 sets maximum allowed time for periodic transfers per
+ Note:
+ USB 2.0 sets maximum allowed time for periodic transfers per
microframe to be 80%, that is 100 microseconds out of 125
microseconds (full microframe).
However there are cases, when 80% max isochronous bandwidth is
too limiting. For example two video streams could require 110
microseconds of isochronous bandwidth per microframe to work
- together. ]
+ together.
Through this setting it is possible to raise the limit so that
the host controller would allow allocating more than 100
@@ -45,8 +46,10 @@ Date: Jan 2012
KernelVersion:»·3.3
Contact: Kay Sievers <kay.sievers@vrfy.org>
Description: Module taint flags:
- P - proprietary module
- O - out-of-tree module
- F - force-loaded module
- C - staging driver module
- E - unsigned module
+ == =====================
+ P proprietary module
+ O out-of-tree module
+ F force-loaded module
+ C staging driver module
+ E unsigned module
+ == =====================