`control_req` -> `control_transfer`.

Same as in/out transfer functions now, and matches USB spec
terminology.

3 files changed, 13 insertions, 9 deletions

diff --git a/usbh/src/device.rs b/usbh/src/device.rs
index bdb993e..e77c9ea 100644
--- a/usbh/src/device.rs
+++ b/usbh/src/device.rs
@@ -9,6 +9,10 @@ use log::{debug, error, info, trace};
 use atsamd_hal::target_device::usb;
 
 const MAX_DEVICES: usize = 16;
+
+// TODO:
+// This may be wrong. It may be 15 additional input + 15 additional
+// output! cf §5.3.1.2 of USB 2.0.
 const MAX_ENDPOINTS: usize = 16;
 
 // How long to wait before talking to the device again after setting
@@ -140,7 +144,7 @@ impl Device {
 
                     let mut vol_descr =
                         ::vcell::VolatileCell::<DeviceDescriptor>::new(Default::default());
-                    pipe.control_req(
+                    pipe.control_transfer(
                         RequestType::get_descr(),
                         RequestCode::GetDescriptor,
                         WValue::from((0, DescriptorType::Device as u8)),
@@ -162,7 +166,7 @@ impl Device {
 
                 let mut vol_descr =
                     ::vcell::VolatileCell::<ConfigurationDescriptor>::new(Default::default());
-                pipe.control_req(
+                pipe.control_transfer(
                     RequestType::get_descr(),
                     RequestCode::GetDescriptor,
                     WValue::from((0, DescriptorType::Configuration as u8)),
@@ -177,7 +181,7 @@ impl Device {
                 assert!(desc.w_total_length < 64);
                 let buf: [u8; 64] = [0; 64];
                 let mut tmp = &buf[..desc.w_total_length as usize];
-                pipe.control_req(
+                pipe.control_transfer(
                     RequestType::get_descr(),
                     RequestCode::GetDescriptor,
                     WValue::from((0, DescriptorType::Configuration as u8)),
@@ -194,7 +198,7 @@ impl Device {
 
                 debug!("+++ setting configuration");
                 let conf: u8 = 1;
-                pipe.control_req(
+                pipe.control_transfer(
                     RequestType::set(),
                     RequestCode::SetConfiguration,
                     WValue::from((conf, 0)),
@@ -205,7 +209,7 @@ impl Device {
                 debug!(" -- configuration set");
 
                 debug!("+++ setting idle");
-                pipe.control_req(
+                pipe.control_transfer(
                     RequestType::from((
                         RequestDirection::HostToDevice,
                         RequestKind::Class,
@@ -221,7 +225,7 @@ impl Device {
 
                 debug!("+++ setting report");
                 let mut rep_res: u8 = 0;
-                pipe.control_req(
+                pipe.control_transfer(
                     RequestType::from((
                         RequestDirection::HostToDevice,
                         RequestKind::Class,
diff --git a/usbh/src/lib.rs b/usbh/src/lib.rs
index 70acc31..1cd8a1a 100755
--- a/usbh/src/lib.rs
+++ b/usbh/src/lib.rs
@@ -360,7 +360,7 @@ where
     fn configure_dev(&mut self) -> Result<(), PipeErr> {
         let mut pipe = self.pipe_table.pipe_for(self.usb.host_mut(), 0, 0);
         let mut vol_descr = ::vcell::VolatileCell::<DeviceDescriptor>::new(Default::default());
-        pipe.control_req(
+        pipe.control_transfer(
             RequestType::get_descr(),
             RequestCode::GetDescriptor,
             WValue::from((0, DescriptorType::Device as u8)),
@@ -378,7 +378,7 @@ where
             Some(device) => {
                 device.max_packet_size = desc.b_max_packet_size;
                 debug!("Setting address to {}.", device.addr);
-                pipe.control_req(
+                pipe.control_transfer(
                     RequestType::set(),
                     RequestCode::SetAddress,
                     WValue::from((device.addr, 0)),
diff --git a/usbh/src/pipe.rs b/usbh/src/pipe.rs
index 835ba86..660a21e 100644
--- a/usbh/src/pipe.rs
+++ b/usbh/src/pipe.rs
@@ -101,7 +101,7 @@ pub(crate) struct Pipe<'a, 'b> {
     pub(crate) desc: &'a mut PipeDesc,
 }
 impl Pipe<'_, '_> {
-    pub(crate) fn control_req<T>(
+    pub(crate) fn control_transfer<T>(
         &mut self,
         bm_request_type: RequestType,
         b_request: RequestCode,