module_param(comedi_debug, int, 0644);
#endif
+int comedi_autoconfig = 1;
+module_param(comedi_autoconfig, bool, 0444);
+
+int comedi_num_legacy_minors = 0;
+module_param(comedi_num_legacy_minors, int, 0444);
+
static DEFINE_SPINLOCK(comedi_file_info_table_lock);
static struct comedi_device_file_info
*comedi_file_info_table[COMEDI_NUM_MINORS];
{
unsigned i;
- for (i = 0; i < COMEDI_NUM_LEGACY_MINORS; i++)
+ for (i = 0; i < comedi_num_legacy_minors; i++)
comedi_free_board_minor(i);
}
printk(KERN_INFO "comedi: version " COMEDI_RELEASE
" - http://www.comedi.org\n");
+ if (comedi_num_legacy_minors < 0 ||
+ comedi_num_legacy_minors > COMEDI_NUM_BOARD_MINORS) {
+ printk(KERN_ERR "comedi: error: invalid value for module "
+ "parameter \"comedi_num_legacy_minors\". Valid values "
+ "are 0 through %i.\n", COMEDI_NUM_BOARD_MINORS);
+ return -EINVAL;
+ }
+
+ /*
+ * comedi is unusable if both comedi_autoconfig and
+ * comedi_num_legacy_minors are zero, so we might as well adjust the
+ * defaults in that case
+ */
+ if (comedi_autoconfig == 0 && comedi_num_legacy_minors == 0)
+ comedi_num_legacy_minors = 16;
+
memset(comedi_file_info_table, 0,
sizeof(struct comedi_device_file_info *) * COMEDI_NUM_MINORS);
comedi_proc_init();
/* create devices files for legacy/manual use */
- for (i = 0; i < COMEDI_NUM_LEGACY_MINORS; i++) {
+ for (i = 0; i < comedi_num_legacy_minors; i++) {
int minor;
minor = comedi_alloc_board_minor(NULL);
if (minor < 0) {
info->read_subdevice = s;
info->write_subdevice = s;
comedi_spin_lock_irqsave(&comedi_file_info_table_lock, flags);
- for (i = COMEDI_FIRST_SUBDEVICE_MINOR; i < COMEDI_NUM_BOARD_MINORS; ++i) {
+ for (i = COMEDI_FIRST_SUBDEVICE_MINOR; i < COMEDI_NUM_MINORS; ++i) {
if (comedi_file_info_table[i] == NULL) {
comedi_file_info_table[i] = info;
break;