diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-hid-logitech-hidpp | 19 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-hid-ntrig | 70 | ||||
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 3 |
3 files changed, 92 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-logitech-hidpp b/Documentation/ABI/testing/sysfs-driver-hid-logitech-hidpp new file mode 100644 index 000000000000..d8f831f2d6b5 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-logitech-hidpp @@ -0,0 +1,19 @@ +What: /sys/bus/hid/drivers/logitech-hidpp-device/<dev>/range +Date: Jan, 2016 +KernelVersion: 4.6 +Contact: linux-input@vger.kernel.org +Description: + (RW) This attribute controls the amount of 'turn' permitted in + Logitech G920 wheel. Reading from the file shows the current + range of the steering wheel. Writing a value within the min and + max boundary sets the range of the wheel. + +What: /sys/bus/hid/drivers/logitech-hidpp-device/<dev>/builtin_power_supply +Date: Apr, 2017 +KernelVersion: 4.12 +Contact: linux-input@vger.kernel.org +Description: + Presence of this file indicates that HID++ driver is capable of + handling battery properties in the kernel. This way, upower can + add a udev rule to decide whether or not it should use the + internal unifying support or the generic kernel one. diff --git a/Documentation/ABI/testing/sysfs-driver-hid-ntrig b/Documentation/ABI/testing/sysfs-driver-hid-ntrig new file mode 100644 index 000000000000..e574a5625efe --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-ntrig @@ -0,0 +1,70 @@ +What: /sys/bus/hid/drivers/ntrig/<dev>/activate_slack +Date: May, 2010 +KernelVersion: 2.6.35 +Contact: linux-input@vger.kernel.org +Description: + (RW) Number of contact frames ignored before acknowledging the + start of activity (activating touch). + + +What: /sys/bus/hid/drivers/ntrig/<dev>/decativate_slack +Date: May, 2010 +KernelVersion: 2.6.35 +Contact: linux-input@vger.kernel.org +Description: + (RW) Number of empty (no contact) frames ignored before + acknowledging the end of activity (deactivating touch). + + When the last finger is removed from the device, it sends a + number of empty frames. By holding off on deactivation for a few + frames false erroneous disconnects can be tolerated, where the + sensor may mistakenly not detect a finger that is still present. + + +What: /sys/bus/hid/drivers/ntrig/<dev>/activation_width +What: /sys/bus/hid/drivers/ntrig/<dev>/activation_height +Date: May, 2010 +KernelVersion: 2.6.35 +Contact: linux-input@vger.kernel.org +Description: + Threholds to override activation slack. + + activation_width: (RW) Width threshold to immediately + start processing touch events. + + activation_height: (RW) Height threshold to immediately + start processing touch events. + + +What: /sys/bus/hid/drivers/ntrig/<dev>/min_width +What: /sys/bus/hid/drivers/ntrig/<dev>/min_height +Date: May, 2010 +KernelVersion: 2.6.35 +Contact: linux-input@vger.kernel.org +Description: + Minimum size contact accepted. + + min_width: (RW) Minimum touch contact width to decide + activation and activity. + + min_height: (RW) Minimum touch contact height to decide + activation and activity. + + +What: /sys/bus/hid/drivers/ntrig/<dev>/sensor_physical_width +What: /sys/bus/hid/drivers/ntrig/<dev>/sensor_physical_height +Date: May, 2010 +KernelVersion: 2.6.35 +Contact: linux-input@vger.kernel.org +Description: + (RO) These are internal ranges not used for normal events but + useful for tuning. + + +What: /sys/bus/hid/drivers/ntrig/<dev>/sensor_logical_width +What: /sys/bus/hid/drivers/ntrig/<dev>/sensor_logical_height +Date: May, 2010 +KernelVersion: 2.6.35 +Contact: linux-input@vger.kernel.org +Description: + (RO) The range for positions reported during activity. diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 5ffe4c4121bd..34dac7cef4cf 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4456,6 +4456,9 @@ usbhid.jspoll= [USBHID] The interval which joysticks are to be polled at. + usbhid.kbpoll= + [USBHID] The interval which keyboards are to be polled at. + usb-storage.delay_use= [UMS] The delay in seconds before a new device is scanned for Logical Units (default 1). |