28 	     "Size of off_t must be equal or less than size of size_t");
41  * @brief	Callback API to get size of retained memory area.
52 				     size_t size);
60 				      const uint8_t *buffer, size_t size);
81 	retained_mem_size_api size;  member
88  * @brief		Returns the size of the retained memory area.
92  * @retval		Positive value indicating size in bytes on success, else negative errno
101 	return api->size(dev);  in z_impl_retained_mem_size()
110  * @param size		Size of data to read.
115 				size_t size);
118 					   uint8_t *buffer, size_t size)  in z_impl_retained_mem_read()  argument
124 	if (size == 0) {  in z_impl_retained_mem_read()
128 	area_size = api->size(dev);  in z_impl_retained_mem_read()
130 	if (offset < 0 || size > area_size || (area_size - size) < (size_t)offset) {  in z_impl_retained_mem_read()
134 	return api->read(dev, offset, buffer, size);  in z_impl_retained_mem_read()
144  * @param size		Size of data to be written.
149 				 size_t size);
152 					    const uint8_t *buffer, size_t size)  in z_impl_retained_mem_write()  argument
158 	if (size == 0) {  in z_impl_retained_mem_write()
162 	area_size = api->size(dev);  in z_impl_retained_mem_write()
164 	if (offset < 0 || size > area_size || (area_size - size) < (size_t)offset) {  in z_impl_retained_mem_write()
168 	return api->write(dev, offset, buffer, size);  in z_impl_retained_mem_write()