X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=macosx.c;h=a0df84e6b079d4e5ff9fa969a27020631115bbfe;hb=02c8a1424d06cb97061a7ebf96231bdb08673b01;hp=f5f19448498f0f5de9819d7413ab180fade6ec7a;hpb=1a584c45b02456ebcb197ba801b0ceae810e84e3;p=libserialport.git

diff --git a/macosx.c b/macosx.c
index f5f1944..a0df84e 100644
--- a/macosx.c
+++ b/macosx.c
@@ -63,6 +63,17 @@ SP_PRIV enum sp_return get_port_details(struct sp_port *port)
 		DEBUG_FMT("Found port %s", path);
 
 		IORegistryEntryGetParentEntry(ioport, kIOServicePlane, &ioparent);
+		if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane,
+		           CFSTR("IOClass"), kCFAllocatorDefault,
+		           kIORegistryIterateRecursively | kIORegistryIterateParents))) {
+			if (CFStringGetCString(cf_property, class, sizeof(class),
+			                       kCFStringEncodingASCII) &&
+			    strstr(class, "USB")) {
+				DEBUG("Found USB class device");
+				port->transport = SP_TRANSPORT_USB;
+			}
+			CFRelease(cf_property);
+		}
 		if ((cf_property=IORegistryEntrySearchCFProperty(ioparent,kIOServicePlane,
 		           CFSTR("IOProviderClass"), kCFAllocatorDefault,
 		           kIORegistryIterateRecursively | kIORegistryIterateParents))) {