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><H1
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><A
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NAME="CHANNEL-COMMAND">channel</H1
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NAME="CHANNEL-COMMAND">channel</H1
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><DIV
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><A
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NAME="AEN3100"
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><H2
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><H2
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>Name</H2
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>Name</H2
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>channel -- Select the system console channel</DIV
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>channel -- Select the system console channel</DIV
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><DIV
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><A
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><A
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NAME="AEN3103"><H2
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NAME="AEN3103"><H2
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>Synopsis</H2
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>Synopsis</H2
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><P
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><P
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><B
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><B
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CLASS="COMMAND"
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>channel</B
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>channel</B
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> [-1 | <TT
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> [-1 | <TT
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CLASS="REPLACEABLE"
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><I
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><I
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>channel_number</I
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>channel_number</I
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>]</P
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>]</P
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NAME="AEN3110"
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NAME="AEN3110"
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><H2
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>Arguments</H2
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>Arguments</H2
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>Name</TH
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>Type</TH
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>Type</TH
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>Description</TH
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>Description</TH
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><TH
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><TH
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>Default</TH
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>Default</TH
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>-1</TD
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>-1</TD
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><TD
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><TD
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> </TD
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> </TD
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><TD
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>Reset the console channel</TD
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>Reset the console channel</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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ALIGN="LEFT"
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VALIGN="TOP"
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><SPAN
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><SPAN
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CLASS="emphasis"
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><I
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><I
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>none</I
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>none</I
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>channel_number</TD
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>channel_number</TD
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>Number</TD
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>Number</TD
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>Select a channel</TD
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>Select a channel</TD
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><TD
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><TD
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WIDTH="25%"
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WIDTH="25%"
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ALIGN="LEFT"
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ALIGN="LEFT"
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VALIGN="TOP"
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VALIGN="TOP"
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><SPAN
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><SPAN
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CLASS="emphasis"
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CLASS="emphasis"
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><I
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><I
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CLASS="EMPHASIS"
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CLASS="EMPHASIS"
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>none</I
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>none</I
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></SPAN
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></SPAN
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></TD
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><P
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></P
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><DIV
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><DIV
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CLASS="REFSECT1"
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><A
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><A
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NAME="AEN3137"
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NAME="AEN3137"
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></A
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></A
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><H2
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><H2
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>Description</H2
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>Description</H2
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><P
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><P
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>With no arguments, the <B
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>With no arguments, the <B
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CLASS="COMMAND"
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CLASS="COMMAND"
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>channel</B
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>channel</B
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> command displays the current console channel number.</P
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> command displays the current console channel number.</P
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><P
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><P
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>When passed an argument of 0 upward, this command switches the console
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>When passed an argument of 0 upward, this command switches the console
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channel to that channel number. The mapping between channel numbers and
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channel to that channel number. The mapping between channel numbers and
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physical channels is platform specific but will typically be something like
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physical channels is platform specific but will typically be something like
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channel 0 is the first serial port, channel 1 is the second, etc.</P
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channel 0 is the first serial port, channel 1 is the second, etc.</P
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><P
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><P
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>When passed an argument of -1, this command reverts RedBoot to responding
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>When passed an argument of -1, this command reverts RedBoot to responding
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to whatever channel receives input first, as happens when RedBoot initially
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to whatever channel receives input first, as happens when RedBoot initially
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starts execution.</P
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starts execution.</P
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></DIV
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></DIV
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><DIV
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><DIV
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CLASS="REFSECT1"
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CLASS="REFSECT1"
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><A
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><A
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NAME="AEN3143"
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NAME="AEN3143"
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></A
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></A
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><H2
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><H2
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>Examples</H2
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>Examples</H2
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><P
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><P
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>Show the current channel.
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>Show the current channel.
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<TABLE
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WIDTH="70%"
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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CLASS="SCREEN"
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>
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>
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RedBoot> <TT
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RedBoot> <TT
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CLASS="USERINPUT"
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CLASS="USERINPUT"
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><B
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><B
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>channel</B
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>channel</B
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></TT
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></TT
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>
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>
|
Current console channel id: 0</PRE
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Current console channel id: 0</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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> </P
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> </P
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><P
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><P
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>Change to an invalid channel.
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>Change to an invalid channel.
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<TABLE
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><TD
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><PRE
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><PRE
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CLASS="SCREEN"
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>
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>
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RedBoot> <TT
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RedBoot> <TT
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CLASS="USERINPUT"
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CLASS="USERINPUT"
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><B
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><B
|
>channel 99</B
|
>channel 99</B
|
></TT
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></TT
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>
|
>
|
**Error: bad channel number '99'</PRE
|
**Error: bad channel number '99'</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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> </P
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> </P
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><P
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><P
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>Revert to the default channel setting (any console mode).
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>Revert to the default channel setting (any console mode).
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<TABLE
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><PRE
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>
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>
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RedBoot> <TT
|
RedBoot> <TT
|
CLASS="USERINPUT"
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CLASS="USERINPUT"
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><B
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><B
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>channel -1</B
|
>channel -1</B
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></TT
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></TT
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></PRE
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></PRE
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></TD
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>
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>
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</P
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