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| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2008-01-08 13:02:55 -0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-02-01 22:26:08 -0500 |
| commit | 50ebec09f1a79df27afeceb14a3059944f327e1d (patch) | |
| tree | 4d368a7c03f4e08bc6a0368385bacceffced6931 /Documentation | |
| parent | 013c40e457ac573b29daa0e369c2ba6729c23557 (diff) | |
| download | linux-50ebec09f1a79df27afeceb14a3059944f327e1d.tar.gz linux-50ebec09f1a79df27afeceb14a3059944f327e1d.tar.bz2 linux-50ebec09f1a79df27afeceb14a3059944f327e1d.zip | |
ACPI: thinkpad-acpi: add poll() support to some sysfs attributes
Implement poll()/select() support through sysfs_notify() for some key
attributes which userspace might want to poll() or select() on.
In order to let userspace know poll()/select() support is available for an
attribute, the thinkpad-acpi sysfs interface version is also bumped up.
Further changes that add poll()/select() capabilities to any pre-existing
attributes will also increment the sysfs interface version.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/thinkpad-acpi.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt index e1c4550dac99..9bbd0f541437 100644 --- a/Documentation/thinkpad-acpi.txt +++ b/Documentation/thinkpad-acpi.txt @@ -311,6 +311,8 @@ sysfs notes: disabled" postition, and 1 if the switch is in the "radios enabled" position. + This attribute has poll()/select() support. + hotkey_report_mode: Returns the state of the procfs ACPI event report mode filter for hot keys. If it is set to 1 (the default), @@ -332,6 +334,8 @@ sysfs notes: undock. Set to zero for normal wake-ups or wake-ups due to unknown reasons. + This attribute has poll()/select() support. + wakeup_hotunplug_complete: Set to 1 if the system was waken up because of an undock or bay ejection request, and that request @@ -340,6 +344,8 @@ sysfs notes: user's choice. Refer to HKEY events 0x4003 and 0x3003, below. + This attribute has poll()/select() support. + input layer notes: A Hot key is mapped to a single input layer EV_KEY event, possibly @@ -1354,3 +1360,6 @@ Sysfs interface changelog: NVRAM polling patch). Some development snapshots of 0.18 had an earlier version that did strange things to hotkey_mask. + +0x020200: Add poll()/select() support to the following attributes: + hotkey_radio_sw, wakeup_hotunplug_complete, wakeup_reason |