diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-wilco-ec | 23 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-watchdog | 23 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-ext4 | 7 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 7 |
4 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-wilco-ec b/Documentation/ABI/testing/debugfs-wilco-ec new file mode 100644 index 000000000000..f814f112e213 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-wilco-ec @@ -0,0 +1,23 @@ +What: /sys/kernel/debug/wilco_ec/raw +Date: January 2019 +KernelVersion: 5.1 +Description: + Write and read raw mailbox commands to the EC. + + For writing: + Bytes 0-1 indicate the message type: + 00 F0 = Execute Legacy Command + 00 F2 = Read/Write NVRAM Property + Byte 2 provides the command code + Bytes 3+ consist of the data passed in the request + + At least three bytes are required, for the msg type and command, + with additional bytes optional for additional data. + + Example: + // Request EC info type 3 (EC firmware build date) + $ echo 00 f0 38 00 03 00 > raw + // View the result. The decoded ASCII result "12/21/18" is + // included after the raw hex. + $ cat raw + 00 31 32 2f 32 31 2f 31 38 00 38 00 01 00 2f 00 .12/21/18.8... diff --git a/Documentation/ABI/testing/sysfs-class-watchdog b/Documentation/ABI/testing/sysfs-class-watchdog index 736046b33040..6317ade5ad19 100644 --- a/Documentation/ABI/testing/sysfs-class-watchdog +++ b/Documentation/ABI/testing/sysfs-class-watchdog @@ -49,3 +49,26 @@ Contact: Wim Van Sebroeck <wim@iguana.be> Description: It is a read only file. It is read to know about current value of timeout programmed. + +What: /sys/class/watchdog/watchdogn/pretimeout +Date: December 2016 +Contact: Wim Van Sebroeck <wim@iguana.be> +Description: + It is a read only file. It specifies the time in seconds before + timeout when the pretimeout interrupt is delivered. Pretimeout + is an optional feature. + +What: /sys/class/watchdog/watchdogn/pretimeout_avaialable_governors +Date: February 2017 +Contact: Wim Van Sebroeck <wim@iguana.be> +Description: + It is a read only file. It shows the pretimeout governors + available for this watchdog. + +What: /sys/class/watchdog/watchdogn/pretimeout_governor +Date: February 2017 +Contact: Wim Van Sebroeck <wim@iguana.be> +Description: + It is a read/write file. When read, the currently assigned + pretimeout governor is returned. When written, it sets + the pretimeout governor. diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4 index c631253cf85c..78604db56279 100644 --- a/Documentation/ABI/testing/sysfs-fs-ext4 +++ b/Documentation/ABI/testing/sysfs-fs-ext4 @@ -109,3 +109,10 @@ Description: write operation (since a 4k random write might turn into a much larger write due to the zeroout operation). + +What: /sys/fs/ext4/<disk>/journal_task +Date: February 2019 +Contact: "Theodore Ts'o" <tytso@mit.edu> +Description: + This file is read-only and shows the pid of journal thread in + current pid-namespace or 0 if task is unreachable. diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index a7ce33199457..91822ce25831 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -86,6 +86,13 @@ Description: The unit size is one block, now only support configuring in range of [1, 512]. +What: /sys/fs/f2fs/<disk>/umount_discard_timeout +Date: January 2019 +Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> +Description: + Set timeout to issue discard commands during umount. + Default: 5 secs + What: /sys/fs/f2fs/<disk>/max_victim_search Date: January 2014 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> |
