diff options
| -rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 10 | ||||
| -rw-r--r-- | drivers/staging/comedi/comedidev.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 38de7f70f0b8..647c7f347ee0 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -90,6 +90,16 @@ static DEFINE_SPINLOCK(comedi_file_info_table_lock); static struct comedi_device_file_info *comedi_file_info_table[COMEDI_NUM_MINORS]; +struct comedi_device *comedi_dev_from_minor(unsigned minor) +{ + struct comedi_device_file_info *info; + + info = comedi_get_device_file_info(minor); + + return info ? info->device : NULL; +} +EXPORT_SYMBOL_GPL(comedi_dev_from_minor); + static struct comedi_subdevice * comedi_get_read_subdevice(const struct comedi_device_file_info *info) { diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index a2123ae7daba..fc2c17925381 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -282,6 +282,8 @@ static const unsigned COMEDI_SUBDEVICE_MINOR_OFFSET = 1; struct comedi_device_file_info *comedi_get_device_file_info(unsigned minor); +struct comedi_device *comedi_dev_from_minor(unsigned minor); + int comedi_alloc_subdevices(struct comedi_device *, int); void comedi_device_detach(struct comedi_device *dev); |