NAME

ssdfb —

OLED/PLED framebuffer device driver

SYNOPSIS

options FONT_SPLEEN5x8
ssdfb* at iic? addr ?
ssdfb* at iic? addr 0x3c
ssdfb* at iic? addr 0x3d flags 0x102
ssdfb* at spi? slave ? flags 0x105
wsdisplay* at ssdfb?

DESCRIPTION

The ssdfb driver provides wsdisplay(4) support for OLED/PLED framebuffer modules based on one of the following controller chips:

Solomon Systech Ltd SSD1306
Sino Wealth Electronic Ltd SH1106
Solomon Systech Ltd SSD1322

The following products (controller + panel assemblies) are supported:

0x01: Generic SSD1306 modules using default settings
0x02: Generic SH1106 modules using default settings
0x03: Adafruit Industries, LLC product 938 (128x64)
0x04: Adafruit Industries, LLC product 931 (128x32)
0x05: Generic SSD1322 modules using default settings

The flags value can contain one or more of the following, bitwise OR'ed:

0x0??: Exactly one product id from the above list
0x100: indicates that the display is mounted upside down and flips the screen
0x200: enable inverse video
0x400: forcibly attach as console

HISTORY

An ssdfb driver first appeared in OpenBSD 6.4 and later in NetBSD 9.0.

AUTHORS

The ssdfb driver was written by Tobias Nygren <tnn@NetBSD.org>.

It was inspired by (and shares its name with) the OpenBSD driver written by Patrick Wildt <patrick@blueri.se> but does not share any code.

BUGS

The "4-wire SPI" MCU interface which requires an auxiliary gpio(4) pin for the D/C# signal is currently not supported.