Initial

1 files changed, 111 insertions, 0 deletions

diff --git a/src/os/null_usb.c b/src/os/null_usb.c
new file mode 100644
index 0000000..0cd531d
--- /dev/null
+++ b/src/os/null_usb.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2019 Pino Toscano <toscano.pino@tiscali.it>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libusbi.h"
+
+static int
+null_get_device_list(struct libusb_context * ctx,
+	struct discovered_devs **discdevs)
+{
+	return LIBUSB_SUCCESS;
+}
+
+static int
+null_open(struct libusb_device_handle *handle)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static void
+null_close(struct libusb_device_handle *handle)
+{
+}
+
+static int
+null_get_active_config_descriptor(struct libusb_device *dev,
+    void *buf, size_t len)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_get_config_descriptor(struct libusb_device *dev, uint8_t idx,
+    void *buf, size_t len)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_set_configuration(struct libusb_device_handle *handle, int config)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_claim_interface(struct libusb_device_handle *handle, uint8_t iface)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_release_interface(struct libusb_device_handle *handle, uint8_t iface)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_set_interface_altsetting(struct libusb_device_handle *handle, uint8_t iface,
+    uint8_t altsetting)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_clear_halt(struct libusb_device_handle *handle, unsigned char endpoint)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_submit_transfer(struct usbi_transfer *itransfer)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+static int
+null_cancel_transfer(struct usbi_transfer *itransfer)
+{
+	return LIBUSB_ERROR_NOT_SUPPORTED;
+}
+
+const struct usbi_os_backend usbi_backend = {
+	.name = "Null backend",
+	.caps = 0,
+	.get_device_list = null_get_device_list,
+	.open = null_open,
+	.close = null_close,
+	.get_active_config_descriptor = null_get_active_config_descriptor,
+	.get_config_descriptor = null_get_config_descriptor,
+	.set_configuration = null_set_configuration,
+	.claim_interface = null_claim_interface,
+	.release_interface = null_release_interface,
+	.set_interface_altsetting = null_set_interface_altsetting,
+	.clear_halt = null_clear_halt,
+	.submit_transfer = null_submit_transfer,
+	.cancel_transfer = null_cancel_transfer,
+};