SSDFB(4)

SSDFB(4) | Device Drivers Manual | SSDFB(4)

# 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

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

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

iic(4), wsdisplay(4)

# 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.

March 17, 2019 | NetBSD 9.3