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+.\" $OpenBSD: ssdfb.4,v 1.3 2019/10/07 20:37:16 patrick Exp $
+.\"
+.\" Copyright (c) 2019 Patrick Wildt <patrick@blueri.se>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: October 7 2019 $
+.Dt SSDFB 4
+.Os
+.Sh NAME
+.Nm ssdfb
+.Nd Solomon Systech SSD1306/SSD1309 OLED display module
+.Sh SYNOPSIS
+.Cd "ssdfb* at iic?"
+.Cd "ssdfb* at spi?"
+.Cd "wsdisplay* at ssdfb?"
+.Sh DESCRIPTION
+The
+.Nm
+driver supports OLED display modules based on the Solomon Systech SSD1306 or
+SSD1309 chips.
+The support for partial updates in both the chip and the driver improves the
+display's responsiveness.
+Due to the small resolution of about 128x64 the display makes most sense as a
+text-based terminal.
+.Sh SEE ALSO
+.Xr iic 4 ,
+.Xr intro 4 ,
+.Xr wscons 4 ,
+.Xr wsdisplay 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 6.4 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Patrick Wildt Aq Mt patrick@blueri.se .