include/system/device_tree.h

10  * This work is licensed under the GNU GPL license version 2 or later.
21  * load_device_tree_from_sysfs: reads the device tree information in the
22  * /proc/device-tree directory and return the corresponding binary blob
29  * qemu_fdt_node_path: return the paths of nodes matching a given
31  * @fdt: pointer to the dt blob
37  * Use g_strfreev() to free it. If one or more nodes were found, the
38  * array contains the path of each node and the last element equals to
39  * NULL. If there is no error but no matching node was found, the
41  * was encountered when parsing the blob, the function returns NULL
50  * qemu_fdt_node_unit_path: return the paths of nodes matching a given
52  * @fdt: pointer to the dt blob
57  * Use g_strfreev() to free it. If one or more nodes were found, the
58  * array contains the path of each node and the last element equals to
59  * NULL. If there is no error but no matching node was found, the
61  * was encountered when parsing the blob, the function returns NULL
77  * @fdt: pointer to the dt blob
85  * setting the property.
94  * qemu_fdt_getprop: retrieve the value of a given property
95  * @fdt: pointer to the device tree blob
97  * @property: name of the property to find
98  * @lenp: fdt error if any or length of the property on success
101  * returns a pointer to the property on success and NULL on failure
107  * qemu_fdt_getprop_cell: retrieve the value of a given 4 byte property
108  * @fdt: pointer to the device tree blob
110  * @property: name of the property to find
111  * @lenp: fdt error if any or -EINVAL if the property size is different from
112  *        4 bytes, or 4 (expected length of the property) upon success.
115  * returns the property value on success
144  * Set the specified property on the specified node in the device tree
145  * to be an array of cells. The values of the cells are specified via
146  * the values list, which alternates between "number of cells used by
149  * an error being returned). If a value is too large to fit in the
154  * the number of cells used for each element vary depending on the
156  * If you know all your cell elements are one cell wide you can use the
157  * simpler qemu_fdt_setprop_cells(). If you're not setting up the
176  * Set the specified property on the specified node in the device tree
177  * to be an array of cells. The values of the cells are specified via
178  * the variable arguments, which alternates between "number of cells
181  * This is a convenience wrapper for the function