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Diffstat (limited to 'Documentation/ABI/testing/sysfs-module')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-module | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module new file mode 100644 index 0000000000..62addab47d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-module @@ -0,0 +1,73 @@ +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) + + 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. + + 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/*/initstate +Date: Nov 2006 +KernelVersion: 2.6.19 +Contact: Kay Sievers <kay.sievers@vrfy.org> +Description: Show the initialization state(live, coming, going) of + the module. + +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 + E unsigned module + == ===================== + +What: /sys/module/grant_table/parameters/free_per_iteration +Date: July 2023 +KernelVersion: 6.5 but backported to all supported stable branches +Contact: Xen developer discussion <xen-devel@lists.xenproject.org> +Description: Read and write number of grant entries to attempt to free per iteration. + + Note: Future versions of Xen and Linux may provide a better + interface for controlling the rate of deferred grant reclaim + or may not need it at all. +Users: Qubes OS (https://www.qubes-os.org) |