Improve delbin error message in Windows.

diff --git a/delbin.c b/delbin.c
index 2da29184ee90d72d7dff2378720f8769f92b7adb..a527f6e84d0b2f4a0ff3df1725e92042f66aa8c7 100644 (file)
--- a/delbin.c
+++ b/delbin.c
@@ -2371,11 +2371,12 @@ win_os_deinit(void)
 static unsigned
 win_os_packet_read(void* buf)
 {
-       unsigned n;
+       DWORD n;
        char buf1[257];
        // first byte is report id
        if (ReadFile(hid_handle, buf1, delbin_os_packet_size + 1, &n, NULL) == 0) {
-               fatal(MYNAME ": ReadFile failed %u\n", GetLastError());
+               unsigned err = GetLastError();
+               fatal(MYNAME ": ReadFile failed %u\n", err);
        }
        if (n > 0) {
                n--;
@@ -2387,13 +2388,15 @@ win_os_packet_read(void* buf)
 static unsigned
 win_os_packet_write(const void* buf, unsigned size)
 {
-       unsigned n;
+       DWORD n;
        char buf1[257];
        // first byte is report id
        buf1[0] = 0;
        memcpy(buf1 + 1, buf, size);
        if (WriteFile(hid_handle, buf1, delbin_os_packet_size + 1, &n, NULL) == 0) {
-               fatal(MYNAME ": WriteFile failed %u\n", GetLastError());
+               unsigned err = GetLastError();
+               fatal(MYNAME ": WriteFile of %u bytes failed with %u.  Size: %u Wrote: %d\n", 
+                       delbin_os_packet_size + 1, err, size, (int) n);
        }
        if (n > size) {
                n = size;