diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 | 27 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-led-driver-sc27xx | 22 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-led-trigger-pattern | 82 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-net | 4 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-net-dsa | 7 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 17 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-power | 2 |
7 files changed, 130 insertions, 31 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 b/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 deleted file mode 100644 index ae0a2d3dcc07..000000000000 --- a/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 +++ /dev/null @@ -1,27 +0,0 @@ -sysfs interface for the S6E63M0 AMOLED LCD panel driver -------------------------------------------------------- - -What: /sys/class/lcd/<lcd>/gamma_mode -Date: May, 2010 -KernelVersion: v2.6.35 -Contact: dri-devel@lists.freedesktop.org -Description: - (RW) Read or write the gamma mode. Following three modes are - supported: - 0 - gamma value 2.2, - 1 - gamma value 1.9 and - 2 - gamma value 1.7. - - -What: /sys/class/lcd/<lcd>/gamma_table -Date: May, 2010 -KernelVersion: v2.6.35 -Contact: dri-devel@lists.freedesktop.org -Description: - (RO) Displays the size of the gamma table i.e. the number of - gamma modes available. - -This is a backlight lcd driver. These interfaces are an extension to the API -documented in Documentation/ABI/testing/sysfs-class-lcd and in -Documentation/ABI/stable/sysfs-class-backlight (under -/sys/class/backlight/<backlight>/). diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-sc27xx b/Documentation/ABI/testing/sysfs-class-led-driver-sc27xx new file mode 100644 index 000000000000..45b1e605d355 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-driver-sc27xx @@ -0,0 +1,22 @@ +What: /sys/class/leds/<led>/hw_pattern +Date: September 2018 +KernelVersion: 4.20 +Description: + Specify a hardware pattern for the SC27XX LED. For the SC27XX + LED controller, it only supports 4 stages to make a single + hardware pattern, which is used to configure the rise time, + high time, fall time and low time for the breathing mode. + + For the breathing mode, the SC27XX LED only expects one brightness + for the high stage. To be compatible with the hardware pattern + format, we should set brightness as 0 for rise stage, fall + stage and low stage. + + Min stage duration: 125 ms + Max stage duration: 31875 ms + + Since the stage duration step is 125 ms, the duration should be + a multiplier of 125, like 125ms, 250ms, 375ms, 500ms ... 31875ms. + + Thus the format of the hardware pattern values should be: + "0 rise_duration brightness high_duration 0 fall_duration 0 low_duration". diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-pattern b/Documentation/ABI/testing/sysfs-class-led-trigger-pattern new file mode 100644 index 000000000000..fb3d1e03b881 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-trigger-pattern @@ -0,0 +1,82 @@ +What: /sys/class/leds/<led>/pattern +Date: September 2018 +KernelVersion: 4.20 +Description: + Specify a software pattern for the LED, that supports altering + the brightness for the specified duration with one software + timer. It can do gradual dimming and step change of brightness. + + The pattern is given by a series of tuples, of brightness and + duration (ms). The LED is expected to traverse the series and + each brightness value for the specified duration. Duration of + 0 means brightness should immediately change to new value, and + writing malformed pattern deactivates any active one. + + 1. For gradual dimming, the dimming interval now is set as 50 + milliseconds. So the tuple with duration less than dimming + interval (50ms) is treated as a step change of brightness, + i.e. the subsequent brightness will be applied without adding + intervening dimming intervals. + + The gradual dimming format of the software pattern values should be: + "brightness_1 duration_1 brightness_2 duration_2 brightness_3 + duration_3 ...". For example: + + echo 0 1000 255 2000 > pattern + + It will make the LED go gradually from zero-intensity to max (255) + intensity in 1000 milliseconds, then back to zero intensity in 2000 + milliseconds: + + LED brightness + ^ + 255-| / \ / \ / + | / \ / \ / + | / \ / \ / + | / \ / \ / + 0-| / \/ \/ + +---0----1----2----3----4----5----6------------> time (s) + + 2. To make the LED go instantly from one brigntess value to another, + we should use use zero-time lengths (the brightness must be same as + the previous tuple's). So the format should be: + "brightness_1 duration_1 brightness_1 0 brightness_2 duration_2 + brightness_2 0 ...". For example: + + echo 0 1000 0 0 255 2000 255 0 > pattern + + It will make the LED stay off for one second, then stay at max brightness + for two seconds: + + LED brightness + ^ + 255-| +---------+ +---------+ + | | | | | + | | | | | + | | | | | + 0-| -----+ +----+ +---- + +---0----1----2----3----4----5----6------------> time (s) + +What: /sys/class/leds/<led>/hw_pattern +Date: September 2018 +KernelVersion: 4.20 +Description: + Specify a hardware pattern for the LED, for LED hardware that + supports autonomously controlling brightness over time, according + to some preprogrammed hardware patterns. It deactivates any active + software pattern. + + Since different LED hardware can have different semantics of + hardware patterns, each driver is expected to provide its own + description for the hardware patterns in their ABI documentation + file. + +What: /sys/class/leds/<led>/repeat +Date: September 2018 +KernelVersion: 4.20 +Description: + Specify a pattern repeat number. -1 means repeat indefinitely, + other negative numbers and number 0 are invalid. + + This file will always return the originally written repeat + number. diff --git a/Documentation/ABI/testing/sysfs-class-net b/Documentation/ABI/testing/sysfs-class-net index 2f1788111cd9..e2e0fe553ad8 100644 --- a/Documentation/ABI/testing/sysfs-class-net +++ b/Documentation/ABI/testing/sysfs-class-net @@ -117,7 +117,7 @@ Description: full: full duplex Note: This attribute is only valid for interfaces that implement - the ethtool get_settings method (mostly Ethernet). + the ethtool get_link_ksettings method (mostly Ethernet). What: /sys/class/net/<iface>/flags Date: April 2005 @@ -224,7 +224,7 @@ Description: an integer representing the link speed in Mbits/sec. Note: this attribute is only valid for interfaces that implement - the ethtool get_settings method (mostly Ethernet ). + the ethtool get_link_ksettings method (mostly Ethernet). What: /sys/class/net/<iface>/tx_queue_len Date: April 2005 diff --git a/Documentation/ABI/testing/sysfs-class-net-dsa b/Documentation/ABI/testing/sysfs-class-net-dsa new file mode 100644 index 000000000000..f240221e071e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-net-dsa @@ -0,0 +1,7 @@ +What: /sys/class/net/<iface>/tagging +Date: August 2018 +KernelVersion: 4.20 +Contact: netdev@vger.kernel.org +Description: + String indicating the type of tagging protocol used by the + DSA slave network device. diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 94a24aedcdb2..3ac41774ad3c 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -121,7 +121,22 @@ What: /sys/fs/f2fs/<disk>/idle_interval Date: January 2016 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> Description: - Controls the idle timing. + Controls the idle timing for all paths other than + discard and gc path. + +What: /sys/fs/f2fs/<disk>/discard_idle_interval +Date: September 2018 +Contact: "Chao Yu" <yuchao0@huawei.com> +Contact: "Sahitya Tummala" <stummala@codeaurora.org> +Description: + Controls the idle timing for discard path. + +What: /sys/fs/f2fs/<disk>/gc_idle_interval +Date: September 2018 +Contact: "Chao Yu" <yuchao0@huawei.com> +Contact: "Sahitya Tummala" <stummala@codeaurora.org> +Description: + Controls the idle timing for gc path. What: /sys/fs/f2fs/<disk>/iostat_enable Date: August 2017 diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power index 2f813d644c69..18b7dc929234 100644 --- a/Documentation/ABI/testing/sysfs-power +++ b/Documentation/ABI/testing/sysfs-power @@ -99,7 +99,7 @@ Description: this file, the suspend image will be as small as possible. Reading from this file will display the current image size - limit, which is set to 500 MB by default. + limit, which is set to around 2/5 of available RAM by default. What: /sys/power/pm_trace Date: August 2006 |