Drop a signal on the process that's associated with the file descriptor. This is a way for a debugger to artificially generate signals as if they came from the system.
The argument is a pointer to a procfs_signal structure that specifies the signal to send. For example:
procfs_signal signal; signal.tid = 0; signal.signo = SIGCONT; signal.code = 0; signal.value = 0; devctl( fd, DCMD_PROC_SIGNAL, &signal, sizeof signal, NULL);