linux-yocto/Documentation/ABI/testing/sysfs-module
Kay Sievers cca3e70730 modules: sysfs - export: taint, coresize, initsize
Recent tools do not want to use /proc to retrieve module information. A few
values are currently missing from sysfs to replace the information available
in /proc/modules.

This adds /sys/module/*/{coresize,initsize,taint} attributes.

TAINT_PROPRIETARY_MODULE (P) and TAINT_OOT_MODULE (O) flags are both always
shown now, and do no longer exclude each other, also in /proc/modules.

Replace the open-coded sysfs attribute initializers with the __ATTR() macro.

Add the new attributes to Documentation/ABI.

Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-13 09:32:15 +10:30

1.6 KiB

What: /sys/module/pch_phub/drivers/.../pch_mac Date: August 2010 KernelVersion: 2.6.35 Contact: masa-korg@dsn.okisemi.com Description: Write/read GbE MAC address.

What: /sys/module/pch_phub/drivers/.../pch_firmware Date: August 2010 KernelVersion: 2.6.35 Contact: masa-korg@dsn.okisemi.com Description: Write/read Option ROM data.

What: /sys/module/ehci_hcd/drivers/.../uframe_periodic_max Date: July 2011 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
	  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. ]

	Through this setting it is possible to raise the limit so that
	the host controller would allow allocating more than 100
	microseconds of periodic bandwidth per microframe.

	Beware, non-standard modes are usually not thoroughly tested by
	hardware designers, and the hardware can malfunction when this
	setting differ from default 100.

What: /sys/module/*/{coresize,initsize} Date: Jan 2012 KernelVersion:»·3.3 Contact: Kay Sievers kay.sievers@vrfy.org Description: Module size in bytes.

What: /sys/module/*/taint 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