* device with index 'open_device_index' and returns the correspondent
* am7xxx_device in the 'dev' parameter; the function returns 0 on success,
* 1 if the device was already open and a negative value on error.
- *
+ *
* NOTES:
* if scan_devices() fails when called with 'op' == SCAN_OP_BUILD_DEVLIST,
* the caller might want to call am7xxx_shutdown() in order to remove