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-rw-r--r--block/raw-posix.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c
index a2c7508856..eea7e56e59 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -1055,9 +1055,26 @@ static int floppy_open(BlockDriverState *bs, const char *filename, int flags)
static int floppy_probe_device(const char *filename)
{
+ int fd, ret;
+ int prio = 0;
+ struct floppy_struct fdparam;
+
if (strstart(filename, "/dev/fd", NULL))
- return 100;
- return 0;
+ prio = 50;
+
+ fd = open(filename, O_RDONLY | O_NONBLOCK);
+ if (fd < 0) {
+ goto out;
+ }
+
+ /* Attempt to detect via a floppy specific ioctl */
+ ret = ioctl(fd, FDGETPRM, &fdparam);
+ if (ret >= 0)
+ prio = 100;
+
+ close(fd);
+out:
+ return prio;
}