ssdfb(4) - NetBSD Manual Pages

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SSDFB(4)                NetBSD Kernel Interfaces 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 mov-
     ing surface mount zero ohm resistors.  This is currently not supported.

NetBSD 9.4                      March 17, 2019                      NetBSD 9.4