Index: uspace/drv/bus/usb/uhci/transfer_list.c
===================================================================
--- uspace/drv/bus/usb/uhci/transfer_list.c	(revision 38c9505b89604cf985448cc6a31261adcb01ff59)
+++ uspace/drv/bus/usb/uhci/transfer_list.c	(revision 026793d93499d089b36163093b5ef05e10ac1f12)
@@ -141,5 +141,5 @@
 	list_append(&batch->link, &instance->batch_list);
 
-	usb_log_debug("Batch %p " USB_TRANSFER_BATCH_FMT " scheduled in queue %s.\n",
+	usb_log_debug2("Batch %p " USB_TRANSFER_BATCH_FMT " scheduled in queue %s.\n",
 	    batch, USB_TRANSFER_BATCH_ARGS(*batch), instance->name);
 	fibril_mutex_unlock(&instance->guard);
Index: uspace/drv/bus/usb/usbmast/mast.c
===================================================================
--- uspace/drv/bus/usb/usbmast/mast.c	(revision 38c9505b89604cf985448cc6a31261adcb01ff59)
+++ uspace/drv/bus/usb/usbmast/mast.c	(revision 026793d93499d089b36163093b5ef05e10ac1f12)
@@ -42,10 +42,10 @@
 #include <usb/dev/request.h>
 
-bool usb_mast_verbose = true;
+bool usb_mast_verbose = false;
 
 #define MASTLOG(format, ...) \
 	do { \
 		if (usb_mast_verbose) { \
-			usb_log_debug("USB cl08: " format, ##__VA_ARGS__); \
+			usb_log_debug2("USB cl08: " format, ##__VA_ARGS__); \
 		} \
 	} while (false)
Index: uspace/lib/usbhost/src/batch.c
===================================================================
--- uspace/lib/usbhost/src/batch.c	(revision 38c9505b89604cf985448cc6a31261adcb01ff59)
+++ uspace/lib/usbhost/src/batch.c	(revision 026793d93499d089b36163093b5ef05e10ac1f12)
@@ -128,5 +128,5 @@
 	memcpy(instance->buffer, instance->data_buffer, instance->buffer_size);
 
-	usb_log_debug("Batch %p " USB_TRANSFER_BATCH_FMT " completed (%zuB): %s.\n",
+	usb_log_debug2("Batch %p " USB_TRANSFER_BATCH_FMT " completed (%zuB): %s.\n",
 	    instance, USB_TRANSFER_BATCH_ARGS(*instance),
 	    instance->transfered_size, str_error(instance->error));
@@ -145,5 +145,5 @@
 	assert(instance->callback_out);
 
-	usb_log_debug("Batch %p " USB_TRANSFER_BATCH_FMT " completed: %s.\n",
+	usb_log_debug2("Batch %p " USB_TRANSFER_BATCH_FMT " completed: %s.\n",
 	    instance, USB_TRANSFER_BATCH_ARGS(*instance),
 	    str_error(instance->error));