On the heels of the Chromebook Plus and Pro, Samsung’s next-generation Chromebook is likely to feature a tablet design with a detachable keyboard. This is according to the Chromium Repository, with the latest entries now hinting at the presence of a stylus.
Back in November, references to a Chromebook codenamed “Nautilus” emerged in the Chromium Repository. Available details suggest a “tablet mode” and a “base” component that it can connect to. The latter is likely the keyboard where the screen can be docked for longer typing and charging.
Meanwhile, if Samsung is indeed the manufacturer, a stylus accessory is not all too surprising given the presence on the current generation Chromebook Plus/Pro.
Nautilus has a PEN_EJECT signal that is routed to 2 CPU GPIO pins:
B19: We need an input driver to use this to emit SW_PEN_INSERTED event. (This patch enables the B19 usecase). B21: This is used for wakeup (configured by ACPI)
Kevin uses gpio-keys driver to do this but the driver only understands device trees or platform data. Hence we instantiate the gpio-keys with the platform data.
BUG=b:71329519 TEST=Verify that the “stylus tools” menu gets launched when I eject the pen on nautilus.
Hopefully, the stylus included with Nautilus will have access to the same tools as the Pixelbook Pen, namely searching with the Google Assistant.