@@ -214,23 +214,23 @@ FN_INTERNAL int fnusb_list_device_attributes(freenect_context *ctx, struct freen
214214 res = libusb_get_device_descriptor (audio_device , & audio_desc );
215215 if (res != 0 )
216216 {
217- FN_WARNING ("Failed to get audio serial descriptors of K4W or 1473 device: %d \n" , res );
217+ FN_WARNING ("Failed to get audio serial descriptors of K4W or 1473 device: %s \n" , libusb_error_name ( res ) );
218218 }
219219 else
220220 {
221221 libusb_device_handle * audio_handle = NULL ;
222222 res = libusb_open (audio_device , & audio_handle );
223223 if (res != 0 )
224224 {
225- FN_WARNING ("Failed to open audio device for serial of K4W or 1473 device: %d \n" , res );
225+ FN_WARNING ("Failed to open audio device for serial of K4W or 1473 device: %s \n" , libusb_error_name ( res ) );
226226 }
227227 else
228228 {
229229 res = libusb_get_string_descriptor_ascii (audio_handle , audio_desc .iSerialNumber , serial , 256 );
230230 libusb_close (audio_handle );
231231 if (res != 0 )
232232 {
233- FN_WARNING ("Failed to get audio serial of K4W or 1473 device: %d \n" , res );
233+ FN_WARNING ("Failed to get audio serial of K4W or 1473 device: %s \n" , libusb_error_name ( res ) );
234234 }
235235 }
236236 }
@@ -348,7 +348,7 @@ FN_INTERNAL int fnusb_keep_alive_led(freenect_context* ctx, libusb_device* audio
348348
349349 res = libusb_open (audio , & audioHandle );
350350 if (res < 0 ) {
351- FN_ERROR ("Failed to set the LED of K4W or 1473 device: %d \n" , res );
351+ FN_ERROR ("Failed to set the LED of K4W or 1473 device: %s \n" , libusb_error_name ( res ) );
352352 return res ;
353353 }
354354
@@ -359,14 +359,14 @@ FN_INTERNAL int fnusb_keep_alive_led(freenect_context* ctx, libusb_device* audio
359359
360360 res = libusb_open (audio , & audioHandle );
361361 if (res < 0 ) {
362- FN_ERROR ("Failed to set the LED of K4W or 1473 device: %d \n" , res );
362+ FN_ERROR ("Failed to set the LED of K4W or 1473 device: %s \n" , libusb_error_name ( res ) );
363363 return res ;
364364 }
365365
366366 res = libusb_claim_interface (audioHandle , 0 );
367367 if (res < 0 )
368368 {
369- FN_ERROR ("Unable to claim interface %d \n" , res );
369+ FN_ERROR ("Unable to claim interface %s \n" , libusb_error_name ( res ) );
370370 }
371371 else
372372 {
@@ -423,7 +423,7 @@ FN_INTERNAL int fnusb_open_subdevices(freenect_device *dev, int index)
423423 res = libusb_open (camera , & dev -> usb_cam .dev );
424424 if (res < 0 || !dev -> usb_cam .dev )
425425 {
426- FN_ERROR ("Could not open camera: %d \n" , res );
426+ FN_ERROR ("Could not open camera: %s \n" , libusb_error_name ( res ) );
427427 dev -> usb_cam .dev = NULL ;
428428 goto failure ;
429429 }
@@ -481,21 +481,21 @@ FN_INTERNAL int fnusb_open_subdevices(freenect_device *dev, int index)
481481 struct libusb_device_descriptor desc ;
482482 res = libusb_get_device_descriptor (motor , & desc );
483483 if (res < 0 ) {
484- FN_ERROR ("Could not query device: %d \n" , res );
484+ FN_ERROR ("Could not query device: %s \n" , libusb_error_name ( res ) );
485485 goto failure ;
486486 }
487487
488488 res = libusb_open (motor , & dev -> usb_motor .dev );
489489 if (res < 0 || !dev -> usb_motor .dev )
490490 {
491- FN_ERROR ("Could not open device: %d \n" , res );
491+ FN_ERROR ("Could not open device: %s \n" , libusb_error_name ( res ) );
492492 dev -> usb_motor .dev = NULL ;
493493 goto failure ;
494494 }
495495
496496 res = libusb_claim_interface (dev -> usb_motor .dev , 0 );
497497 if (res < 0 ) {
498- FN_ERROR ("Could not claim interface: %d \n" , res );
498+ FN_ERROR ("Could not claim interface: %s \n" , libusb_error_name ( res ) );
499499 libusb_close (dev -> usb_motor .dev );
500500 dev -> usb_motor .dev = NULL ;
501501 goto failure ;
@@ -518,21 +518,21 @@ FN_INTERNAL int fnusb_open_subdevices(freenect_device *dev, int index)
518518 struct libusb_device_descriptor desc ;
519519 res = libusb_get_device_descriptor (audio , & desc );
520520 if (res < 0 ) {
521- FN_ERROR ("Could not query device: %d \n" , res );
521+ FN_ERROR ("Could not query device: %s \n" , libusb_error_name ( res ) );
522522 goto failure ;
523523 }
524524
525525 res = libusb_open (audio , & dev -> usb_audio .dev );
526526 if (res < 0 || !dev -> usb_audio .dev )
527527 {
528- FN_ERROR ("Could not open device: %d \n" , res );
528+ FN_ERROR ("Could not open device: %s \n" , libusb_error_name ( res ) );
529529 dev -> usb_audio .dev = NULL ;
530530 goto failure ;
531531 }
532532
533533 res = libusb_claim_interface (dev -> usb_audio .dev , 0 );
534534 if (res < 0 ) {
535- FN_ERROR ("Could not claim interface: %d \n" , res );
535+ FN_ERROR ("Could not claim interface: %s \n" , libusb_error_name ( res ) );
536536 libusb_close (dev -> usb_audio .dev );
537537 dev -> usb_audio .dev = NULL ;
538538 goto failure ;
@@ -742,7 +742,7 @@ static void LIBUSB_CALL iso_callback(struct libusb_transfer *xfer)
742742 int res ;
743743 res = libusb_submit_transfer (xfer );
744744 if (res != 0 ) {
745- FN_ERROR ("iso_callback(): failed to resubmit transfer after successful completion: %d \n" , res );
745+ FN_ERROR ("iso_callback(): failed to resubmit transfer after successful completion: %s \n" , libusb_error_name ( res ) );
746746 strm -> dead_xfers ++ ;
747747 if (res == LIBUSB_ERROR_NO_DEVICE ) {
748748 strm -> parent -> device_dead = 1 ;
@@ -790,7 +790,7 @@ static void LIBUSB_CALL iso_callback(struct libusb_transfer *xfer)
790790 int res ;
791791 res = libusb_submit_transfer (xfer );
792792 if (res != 0 ) {
793- FN_ERROR ("Isochronous transfer resubmission failed after unknown error: %d \n" , res );
793+ FN_ERROR ("Isochronous transfer resubmission failed after unknown error: %s \n" , libusb_error_name ( res ) );
794794 strm -> dead_xfers ++ ;
795795 if (res == LIBUSB_ERROR_NO_DEVICE ) {
796796 strm -> parent -> device_dead = 1 ;
@@ -849,7 +849,7 @@ FN_INTERNAL int fnusb_start_iso(fnusb_dev *dev, fnusb_isoc_stream *strm, fnusb_i
849849 int ret = libusb_submit_transfer (strm -> xfers [i ]);
850850 if (ret < 0 )
851851 {
852- FN_WARNING ("Failed to submit isochronous transfer %d: %d \n" , i , ret );
852+ FN_WARNING ("Failed to submit isochronous transfer %d: %s \n" , i , libusb_error_name ( ret ) );
853853 strm -> dead_xfers ++ ;
854854 }
855855 }
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