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@ -270,6 +270,33 @@ class Node: |
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del self.props[prop_name] |
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self._fdt.Invalidate() |
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def AddZeroProp(self, prop_name): |
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"""Add a new property to the device tree with an integer value of 0. |
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Args: |
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prop_name: Name of property |
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""" |
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fdt_obj = self._fdt._fdt_obj |
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if fdt_obj.setprop_u32(self.Offset(), prop_name, 0, |
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(libfdt.NOSPACE,)) == -libfdt.NOSPACE: |
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fdt_obj.open_into(fdt_obj.totalsize() + 1024) |
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fdt_obj.setprop_u32(self.Offset(), prop_name, 0) |
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self.props[prop_name] = Prop(self, -1, prop_name, '\0' * 4) |
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self._fdt.Invalidate() |
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def SetInt(self, prop_name, val): |
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"""Update an integer property int the device tree. |
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This is not allowed to change the size of the FDT. |
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Args: |
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prop_name: Name of property |
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val: Value to set |
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""" |
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fdt_obj = self._fdt._fdt_obj |
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fdt_obj.setprop_u32(self.Offset(), prop_name, val) |
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class Fdt: |
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"""Provides simple access to a flat device tree blob using libfdts. |
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