48  * @channels:		the channel info array
49  * @num_channels:	number of channels
51  * Has the side effect of filling the channels[i].location values used
54 static int size_from_channelarray(struct iio_channel_info *channels, int num_channels)  in size_from_channelarray()  argument
60 		if (bytes % channels[i].bytes == 0)  in size_from_channelarray()
61 			channels[i].location = bytes;  in size_from_channelarray()
63 			channels[i].location = bytes - bytes % channels[i].bytes  in size_from_channelarray()
64 					       + channels[i].bytes;  in size_from_channelarray()
66 		bytes = channels[i].location + channels[i].bytes;  in size_from_channelarray()
167  * @channels:		information about the channels.
170  * @num_channels:	number of channels
172 static void process_scan(char *data, struct iio_channel_info *channels,  in process_scan()  argument
178 		switch (channels[k].bytes) {  in process_scan()
181 			print1byte(*(uint8_t *)(data + channels[k].location),  in process_scan()
182 				   &channels[k]);  in process_scan()
185 			print2byte(*(uint16_t *)(data + channels[k].location),  in process_scan()
186 				   &channels[k]);  in process_scan()
189 			print4byte(*(uint32_t *)(data + channels[k].location),  in process_scan()
190 				   &channels[k]);  in process_scan()
193 			print8byte(*(uint64_t *)(data + channels[k].location),  in process_scan()
194 				   &channels[k]);  in process_scan()
215 		fprintf(stderr, "Enabling/disabling channels: can't open %s\n",  in enable_disable_all_channels()
235 		perror("Enabling/disabling channels: "  in enable_disable_all_channels()
246 		"  -a         Auto-activate all available channels\n"  in print_usage()
247 		"  -A         Force-activate ALL channels\n"  in print_usage()
291 	/* Disable channels if auto-enabled */  in cleanup()
295 			fprintf(stderr, "Failed to disable all channels\n");  in cleanup()
357 	struct iio_channel_info *channels = NULL;  in main()  local
537 	 * Parse the files in scan_elements to identify what channels are  in main()
540 	ret = build_channel_array(dev_dir_name, buffer_idx, &channels, &num_channels);  in main()
548 		fprintf(stderr, "Auto-channels selected but some channels "  in main()
550 		fprintf(stderr, "Proceeding without activating any channels\n");  in main()
555 		fprintf(stderr, "Enabling all channels\n");  in main()
559 			fprintf(stderr, "Failed to enable all channels\n");  in main()
563 		/* This flags that we need to disable the channels again */  in main()
566 		ret = build_channel_array(dev_dir_name, buffer_idx, &channels,  in main()
575 			fprintf(stderr, "Still no channels after "  in main()
583 			"No channels are enabled, we have nothing to scan.\n");  in main()
584 		fprintf(stderr, "Enable channels manually in "  in main()
586 			"/*_en or pass -a to autoenable channels and "  in main()
676 	scan_size = size_from_channelarray(channels, num_channels);  in main()
734 			process_scan(data + scan_size * i, channels,  in main()
749 		free(channels[i].name);  in main()
750 		free(channels[i].generic_name);  in main()
752 	free(channels);  in main()