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>Creating a device</H1
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><P
><CODE
><CODE
CLASS="FUNCDEF"
>struct proc_dir_entry* <TT
CLASS="FUNCTION"
>proc_mknod</TT
></CODE
>(const char* <TT
CLASS="PARAMETER"
><I
>name</I
></TT
>, mode_t <TT
CLASS="PARAMETER"
><I
>mode</I
></TT
>, struct proc_dir_entry* <TT
CLASS="PARAMETER"
><I
>parent</I
></TT
>, kdev_t <TT
CLASS="PARAMETER"
><I
>rdev</I
></TT
>);</CODE
></P
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> Creates a device file <TT
CLASS="PARAMETER"
><I
>name</I
></TT
> with mode
<TT
CLASS="PARAMETER"
><I
>mode</I
></TT
> in the procfs directory
<TT
CLASS="PARAMETER"
><I
>parent</I
></TT
>. The device file will work on
the device <TT
CLASS="PARAMETER"
><I
>rdev</I
></TT
>, which can be generated
by using the <TT
CLASS="LITERAL"
>MKDEV</TT
> macro from
<TT
CLASS="LITERAL"
>linux/kdev_t.h</TT
>. The
<TT
CLASS="PARAMETER"
><I
>mode</I
></TT
> parameter
<I
CLASS="EMPHASIS"
>must</I
> contain <TT
CLASS="CONSTANT"
>S_IFBLK</TT
>
or <TT
CLASS="CONSTANT"
>S_IFCHR</TT
> to create a device
node. Compare with userland <TT
CLASS="LITERAL"
>mknod
--mode=</TT
><TT
CLASS="PARAMETER"
><I
>mode</I
></TT
>
<TT
CLASS="PARAMETER"
><I
>name</I
></TT
> <TT
CLASS="PARAMETER"
><I
>rdev</I
></TT
>.
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