diff options
Diffstat (limited to 'drivers/staging/comedi/drivers.c')
| -rw-r--r-- | drivers/staging/comedi/drivers.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 57dd63d548b7..eefa62f42c0f 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -211,6 +211,19 @@ static int poll_invalid(struct comedi_device *dev, struct comedi_subdevice *s) return -EINVAL; } +static int insn_device_inval(struct comedi_device *dev, + struct comedi_insn *insn, unsigned int *data) +{ + return -EINVAL; +} + +static unsigned int get_zero_valid_routes(struct comedi_device *dev, + unsigned int n_pairs, + unsigned int *pair_data) +{ + return 0; +} + int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { @@ -652,6 +665,12 @@ static int __comedi_device_postconfig(struct comedi_device *dev) int ret; int i; + if (!dev->insn_device_config) + dev->insn_device_config = insn_device_inval; + + if (!dev->get_valid_routes) + dev->get_valid_routes = get_zero_valid_routes; + for (i = 0; i < dev->n_subdevices; i++) { s = &dev->subdevices[i]; |