print_channels
static void print_channels(if_ctx *, const struct ieee80211req_chaninfo *,
print_channels(ctx, chaninfo, allchans, ctx->args->verbose);
print_channels(ctx, &dc->dc_chaninfo, 1/*allchans*/, verbose);
print_channels(ctx, chaninfo, 1/*allchans*/, 1/*verbose*/);
print_channels(s, &dc->dc_chaninfo, 1/*allchans*/, 1/*verbose*/);
print_channels(ctx, &req->chaninfo, 1/*allchans*/, 1/*verbose*/);