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Christian Löpke
bs
Commits
6c4dbc2a
Commit
6c4dbc2a
authored
10 years ago
by
Peter Gerwinski
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User-Space-Treiber
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bs-2015ss.pdf
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src/bs-2015ss.tex
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@@ -833,6 +833,28 @@
\fi
\subsection
{
User
-
Space
-
Treiber
}
\begin
{
itemize
}
\item
Der Kernel bzw.
\
das Treiber
-
Modul stellt lediglich
die eigentliche, hardwarenahe Kommunikation mit dem Gert zur Verfgung.
\item
Eine "`normale"' Software im User
-
Space kmmert sich um Spezifika des Gerts.
\\
\textarrow\
User
-
Space
-
Treiber
\arrowitem
Dieselben Treiber
-
Module knnen oft fr mehrere Gerte verwendet werden.
\arrowitem
keine standardisierte Schnittstelle zu Anwendungsprogrammen
\item
Beispiel: GPIO
\\
einfache Bibliothek, verwendet Pseudo
-
Datei
\file
{
/
dev
/
mem
}
zusammen mit Datei
-
Memory
-
Mapping
\file
{
mmap
()
}
\item
Beispiel: X
11
\\
stellt selbst eine standardisierte Schnittstelle zu Anwendungsprogrammen dar
\end
{
itemize
}
\clearpage
\section
{
Massenspeicher
}
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