tools: iio: iio_generic_buffer: add -A to force-enable all channels
If attribute/s is/are already enabled (by default or via scripts or manual interaction), issuing -a will fail to enable the channels thereby one has to manually disable the said attribute/s before proceeding with auto-enabling. Add a command-line option -A to force-activate all channels regardless of their current state. Suggested-by: Alison Schofield <amsfield22@gmail.com> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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@ -247,6 +247,7 @@ void print_usage(void)
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fprintf(stderr, "Usage: generic_buffer [options]...\n"
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"Capture, convert and output data from IIO device buffer\n"
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" -a Auto-activate all available channels\n"
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" -A Force-activate ALL channels\n"
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" -c <n> Do n conversions\n"
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" -e Disable wait for event (new data)\n"
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" -g Use trigger-less mode\n"
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@ -347,16 +348,22 @@ int main(int argc, char **argv)
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int noevents = 0;
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int notrigger = 0;
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char *dummy;
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int force = 0;
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struct iio_channel_info *channels = NULL;
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register_cleanup();
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while ((c = getopt_long(argc, argv, "ac:egl:n:N:t:T:w:?", longopts, NULL)) != -1) {
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while ((c = getopt_long(argc, argv, "aAc:egl:n:N:t:T:w:?", longopts,
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NULL)) != -1) {
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switch (c) {
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case 'a':
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autochannels = AUTOCHANNELS_ENABLED;
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break;
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case 'A':
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autochannels = AUTOCHANNELS_ENABLED;
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force = 1;
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break;
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case 'c':
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errno = 0;
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num_loops = strtoul(optarg, &dummy, 10);
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@ -519,15 +526,15 @@ int main(int argc, char **argv)
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"diag %s\n", dev_dir_name);
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goto error;
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}
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if (num_channels && autochannels == AUTOCHANNELS_ENABLED) {
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if ((num_channels && autochannels == AUTOCHANNELS_ENABLED) && !force) {
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fprintf(stderr, "Auto-channels selected but some channels "
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"are already activated in sysfs\n");
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fprintf(stderr, "Proceeding without activating any channels\n");
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}
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if (!num_channels && autochannels == AUTOCHANNELS_ENABLED) {
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fprintf(stderr,
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"No channels are enabled, enabling all channels\n");
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if ((!num_channels && autochannels == AUTOCHANNELS_ENABLED) ||
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((autochannels == AUTOCHANNELS_ENABLED) && force)) {
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fprintf(stderr, "Enabling all channels\n");
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ret = enable_disable_all_channels(dev_dir_name, 1);
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if (ret) {
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