RF_IO_LOW_PRIORITY
RF_ASSERT(req->priority == RF_IO_NORMAL_PRIORITY || req->priority == RF_IO_LOW_PRIORITY);
#define pri_ok(p) ( ((p) == RF_IO_NORMAL_PRIORITY) || ((p) == RF_IO_LOW_PRIORITY))
RF_ASSERT(priority == RF_IO_NORMAL_PRIORITY || priority == RF_IO_LOW_PRIORITY);
#define RF_IO_RECON_PRIORITY RF_IO_LOW_PRIORITY
if (priority == RF_IO_LOW_PRIORITY) {