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
     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

           ·   Solomon Systech Ltd SSD1353

     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 931 (128x32)

           ·   0x04: Adafruit Industries, LLC product 938 (128x64)

           ·   0x05: Generic SSD1322 modules using default settings

           ·   0x06: Generic SSD1353 modules using default settings

           ·   0x07: Display Elektronik GmbH DEP 160128A(1)-RGB

     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

     On most displays, the contrast setting can be adjusted with the
     wsconsctl(8) program.


EXAMPLES

     To attach an SSD1322 display using the 4-wire spi(4) interface on an All-
     winner A20 ARM single board computer, the following Device Tree overlay
     can be used:

           &spi0 {
                   ssdfb@0 {
                           compatible = "solomon,ssd1322";
                           reg = <0x00>;
                           dc-gpio = <0x10 0x07 0x02 0x00>;
                           status = "okay";
                   };
           };

     To attach an SSD1306 display using the iic(4) interface on the same
     board, use:

           &i2c2 {
                   ssdfb@3c {
                           compatible = "solomon,ssd1306fb-i2c";
                           reg = <0x3c>;
                           status = "okay";
                   };
           };


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.

NetBSD 10.1                     August 5, 2021                     NetBSD 10.1