-bool usrp_write_fpga_reg (struct libusb_device_handle *udh, int reg, int value);
-bool usrp_read_fpga_reg (struct libusb_device_handle *udh, int reg, int *value);
-bool usrp_set_fpga_reset (struct libusb_device_handle *udh, bool on);
-bool usrp_set_fpga_tx_enable (struct libusb_device_handle *udh, bool on);
-bool usrp_set_fpga_rx_enable (struct libusb_device_handle *udh, bool on);
-bool usrp_set_fpga_tx_reset (struct libusb_device_handle *udh, bool on);
-bool usrp_set_fpga_rx_reset (struct libusb_device_handle *udh, bool on);
-bool usrp_set_led (struct libusb_device_handle *udh, int which, bool on);
+bool usrp_write_fpga_reg (libusb_device_handle *udh, int reg, int value);
+bool usrp_read_fpga_reg (libusb_device_handle *udh, int reg, int *value);
+bool usrp_set_fpga_reset (libusb_device_handle *udh, bool on);
+bool usrp_set_fpga_tx_enable (libusb_device_handle *udh, bool on);
+bool usrp_set_fpga_rx_enable (libusb_device_handle *udh, bool on);
+bool usrp_set_fpga_tx_reset (libusb_device_handle *udh, bool on);
+bool usrp_set_fpga_rx_reset (libusb_device_handle *udh, bool on);
+bool usrp_set_led (libusb_device_handle *udh, int which, bool on);