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
wsdisplay* at ssdfb?
DESCRIPTION
Thessdfb 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
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)
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
SEE ALSO
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
Some modules can be reconfigured to attach via spi(4), typically by moving surface mount zero ohm resistors. This is currently not supported.