The other tools have documentation so it seems reasonable to add something here.
Signed-off-by: Simon Glass <[email protected]> --- Changes in v3: None Changes in v2: None Documentation/manual.txt | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/Documentation/manual.txt b/Documentation/manual.txt index 65c8540..5f02426 100644 --- a/Documentation/manual.txt +++ b/Documentation/manual.txt @@ -658,3 +658,41 @@ The fdtdump program prints a readable version of a flat device tree file. The syntax of the fdtdump command line is: fdtdump <DTB-file-name> + + +3) fdtget -- Get individual properties and lists from a Device Tree + +Ths fdtget program allows you to extract properties from nodes, and also +list nodes and properties. + +The syntax of the fdtget commandline is described in the help (fdtget -h). +Common uses are: + + fdtget -ts <DTB-file-name> /node compatible + - Read the compatible string of a node. The -ts is optional since + fdtget will normally guess the type correctly. + + fdtget -bx <DTB-file-name> /node bytes + - Read the bytes in a property and output in hex. The 'b' prefix + forces byte output, since otherwise fdtget will output in 32-bit + or 16-bit words if the property length is so-aligned. + + fdtget -p <DTB-file-name> /node + - List the properties in a node + + fdtget -l <DTB-file-name> / + - List the subnodes for a node (here, the root node) + +You can use -d to provide a default value for when the property does not +exist. + + +4) fdtput -- Write individual properties to a Device Tree + +Ths fdtput program allows you to write properties to nodes. + +The syntax of the fdtput commandline is described in the help (fdtput -h) and +the type options are the same as fdtget. You can use -c to create a node if +it does not exist already, and -p to create all required nodes (like +'mkdir -p' does with directories). Unfortunately fdtput does not support +deleting nodes or properties. -- 1.9.1.423.g4596e3a -- To unsubscribe from this list: send the line "unsubscribe devicetree-compiler" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
