Accept IntoIterators for transfer_multiple

src/lib.rs

@@ -247,7 +247,9 @@ impl Spidev {
     /// Chaining together multiple requests like this can reduce latency
     /// and be used for conveniently and efficient implementing some
     /// protocols without extra round trips back to userspace.
-    pub fn transfer_multiple(&self, transfers: &Vec<SpidevTransfer>) -> io::Result<()> {
+    pub fn transfer_multiple<'a, I>(&self, transfers: I) -> io::Result<()>
+        where I: IntoIterator<Item = &'a SpidevTransfer>
+    {
         spidevioctl::transfer_multiple(self.devfile.as_raw_fd(), transfers)
     }
 }

src/spidevioctl.rs

@@ -240,9 +240,11 @@ pub fn transfer(fd: RawFd, transfer: &mut SpidevTransfer) -> io::Result<()> {
     Ok(())
 }
 
-pub fn transfer_multiple(fd: RawFd, transfers: &Vec<SpidevTransfer>) -> io::Result<()> {
+pub fn transfer_multiple<'a, I>(fd: RawFd, transfers: I) -> io::Result<()>
+    where I: IntoIterator<Item = &'a SpidevTransfer>
+{
     // create a boxed slice containing several spi_ioc_transfers
-    let mut raw_transfers = transfers.iter()
+    let mut raw_transfers = transfers.into_iter()
                                      .map(|transfer| transfer.as_spi_ioc_transfer())
                                      .collect::<Vec<_>>()
                                      .into_boxed_slice();