adb: disable checksum on new versions
The checksum is unnecessary. Improves adb performance by 40% on USB2.
Test: new adb works with new + old adbd, old adb works with new adbd
bug 67327728
Change-Id: I761d8a5a62deaea9bbb092ea9926b2d6d312f00d
diff --git a/adb/transport.h b/adb/transport.h
index 8c101fd..86cd992 100644
--- a/adb/transport.h
+++ b/adb/transport.h
@@ -66,7 +66,9 @@
atransport(ConnectionState state = kCsOffline)
: id(NextTransportId()), connection_state_(state) {
transport_fde = {};
- protocol_version = A_VERSION;
+ // Initialize protocol to min version for compatibility with older versions.
+ // Version will be updated post-connect.
+ protocol_version = A_VERSION_MIN;
max_payload = MAX_PAYLOAD;
}
virtual ~atransport() {}
@@ -223,7 +225,6 @@
void unregister_usb_transport(usb_handle* usb);
bool check_header(apacket* p, atransport* t);
-bool check_data(apacket* p);
void close_usb_devices();
void close_usb_devices(std::function<bool(const atransport*)> predicate);