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-rw-r--r--hw/usb/dev-serial.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c
index ec091b6a36..77b964588b 100644
--- a/hw/usb/dev-serial.c
+++ b/hw/usb/dev-serial.c
@@ -29,7 +29,7 @@ do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0)
 #define DPRINTF(fmt, ...) do {} while(0)
 #endif
 
-#define RECV_BUF 384
+#define RECV_BUF (512 - (2 * 8))
 
 /* Commands */
 #define FTDI_RESET		0