On Thu, Feb 20, 2020 at 9:48 AM Nitin Joshi <nitjoshi@xxxxxxxxx> wrote: > > This feature is supported on some Thinkpad products like T490s, Thinkpad > X1 yoga 4th Gen etc . The lcdshadow feature can be enabled and disabled > when user press "Fn" + "D" key. Currently, no user feedback is given for > this action. Adding as sysfs entry allows userspace to show an On Screen > Display whenever the setting changes. > > Summary of changes is mentioned below : > > - Added TP_HKEY_EV_LCDSHADOW_CHANGED for consistency inside the driver > - Added unmapped LCDSHADOW to keymap > - Added lcdshadow_get function to read value using ACPI > - Added lcdshadow_refresh function to re-read value and send notification > - Added sysfs group creation to tpaci_lcdshadow_init > - Added lcdshadow_exit to remove sysfs group again > - Implemented lcdshadow_enable_show/lcdshadow_enable_store > - Added handler to tpacpi_driver_event to update refresh lcdshadow > - Explicitly call tpacpi_driver_event for extended keyset Adding custom PrivacyGuard support to this driver was my mistake, There is a discussion [1] how to do this in generic way to cover other possible users. I Cc this to people from that discussion. [1]: https://lore.kernel.org/dri-devel/CAL_quvRknSSVvXN3q_Se0hrziw2oTNS3ENNoeHYhvciCRq9Yww@xxxxxxxxxxxxxx/ -- With Best Regards, Andy Shevchenko _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
