Make the fields in the text match dev/usb/usb.h too.

share/man/man4/ugen.4

@@ -145,7 +145,7 @@ is the sole open endpoint.
 Get the alternative setting number for the interface with the given
 index.
 The
-.Va config_index
+.Va uai_config_index
 is ignored in this call.
 .Bd -literal
 struct usb_alt_interface {
@@ -158,14 +158,14 @@ struct usb_alt_interface {
 Set the alternative setting to the given number in the interface with the
 given index.
 The
-.Va config_index
+.Va uai_config_index
 is ignored in this call.
 .Pp
 This operation can only be performed when no endpoints for the interface
 are open.
 .It Dv USB_GET_NO_ALT Pq Vt "struct usb_alt_interface"
 Return the number of different alternate settings in the
-.Va alt_no
+.Va uai_alt_no
 field.
 .It Dv USB_GET_DEVICE_DESC Pq Vt usb_device_descriptor_t
 Return the device descriptor.
@@ -215,9 +215,9 @@ struct usb_full_desc {
 };
 .Ed
 The
-.Va data
+.Va ufd_data
 field should point to a memory area of the size given in the
-.Va size
+.Va ufd_size
 field.
 The proper size can be determined by first issuing a
 .Dv USB_GET_CONFIG_DESC
@@ -237,17 +237,17 @@ struct usb_string_desc {
 .It Dv USB_DO_REQUEST Pq Vt "struct usb_ctl_request"
 Send a USB request to the device on the control endpoint.
 Any data sent to/from the device is located at
-.Va data .
+.Va ucr_data .
 The size of the transferred data is determined from the
-.Va request .
+.Va ucr_request .
 The
-.Va addr
+.Va ucr_addr
 field is ignored in this call.
 The
-.Va flags
+.Va ucr_flags
 field can be used to flag that the request is allowed to
 be shorter than the requested size, and the
-.Va actlen
+.Va ucr_actlen
 will contain the actual size on completion.
 .Bd -literal
 struct usb_ctl_request {