Clear extra packets from buffers, in case something went wrong previously.

Signed-off-by: Matt Colyer <matt@colyer.name>

1 files changed, 18 insertions, 6 deletions

diff --git a/src/iphone.c b/src/iphone.c
index 457d919..6eb56f7 100644
--- a/src/iphone.c
+++ b/src/iphone.c
@@ -38,6 +38,8 @@
 static void iphone_config_usb_device(iphone_device_t phone)
 {
         int ret;
+        int bytes;
+        unsigned char buf[512];
 
         log_debug_msg("setting configuration... ");
         ret = usb_set_configuration(phone->device, 3);
@@ -70,6 +72,14 @@ static void iphone_config_usb_device(iphone_device_t phone)
         } else {
                 log_debug_msg("done.\n");
         }
+
+        do {
+                bytes = usb_bulk_read(phone->device, BULKIN, (void *) &buf, 512, 800);
+                if (bytes > 0) {
+                        log_debug_msg("iphone_config_usb_device: initial read returned %d bytes of data.\n", bytes);
+                        log_debug_buffer(buf, bytes);
+                }
+        } while (bytes > 0);
 }
 
 /**
@@ -219,12 +229,14 @@ iphone_error_t iphone_free_device(iphone_device_t device)
         int bytes;
         unsigned char buf[512];
 
-        // read final package
-        bytes = usb_bulk_read(device->device, BULKIN, (void *) &buf, 512, 1000);
-        if (bytes > 0) {
-                log_debug_msg("iphone_free_device: final read returned\n");
-                log_debug_buffer(buf, bytes);
-        }
+        // read final package(s)
+        do {
+                bytes = usb_bulk_read(device->device, BULKIN, (void *) &buf, 512, 800);
+                if (bytes > 0) {
+                        log_debug_msg("iphone_free_device: final read returned\n");
+                        log_debug_buffer(buf, bytes);
+                }
+        } while (bytes > 0);
 
         if (device->buffer) {
                 free(device->buffer);