diff options
Diffstat (limited to 'libusb/os/null_usb.c')
| -rw-r--r-- | libusb/os/null_usb.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/libusb/os/null_usb.c b/libusb/os/null_usb.c new file mode 100644 index 0000000..97fa0b8 --- /dev/null +++ b/libusb/os/null_usb.c @@ -0,0 +1,176 @@ +/* + * 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_device_descriptor(struct libusb_device *dev, unsigned char *buf, + int *host_endian) +{ + return LIBUSB_ERROR_NOT_SUPPORTED; +} + +static int +null_get_active_config_descriptor(struct libusb_device *dev, + unsigned char *buf, size_t len, int *host_endian) +{ + return LIBUSB_ERROR_NOT_SUPPORTED; +} + +static int +null_get_config_descriptor(struct libusb_device *dev, uint8_t idx, + unsigned char *buf, size_t len, int *host_endian) +{ + 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, int iface) +{ + return LIBUSB_ERROR_NOT_SUPPORTED; +} + +static int +null_release_interface(struct libusb_device_handle *handle, int iface) +{ + return LIBUSB_ERROR_NOT_SUPPORTED; +} + +static int +null_set_interface_altsetting(struct libusb_device_handle *handle, int iface, + int 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_reset_device(struct libusb_device_handle *handle) +{ + 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; +} + +static void +null_clear_transfer_priv(struct usbi_transfer *itransfer) +{ +} + +static int +null_handle_transfer_completion(struct usbi_transfer *itransfer) +{ + return LIBUSB_ERROR_NOT_SUPPORTED; +} + +static int +null_clock_gettime(int clkid, struct timespec *tp) +{ + switch (clkid) { + case USBI_CLOCK_MONOTONIC: + return clock_gettime(CLOCK_REALTIME, tp); + case USBI_CLOCK_REALTIME: + return clock_gettime(CLOCK_REALTIME, tp); + default: + return LIBUSB_ERROR_INVALID_PARAM; + } +} + +const struct usbi_os_backend usbi_backend = { + .name = "Null backend", + .caps = 0, + .init = NULL, + .exit = NULL, + .set_option = NULL, + .get_device_list = null_get_device_list, + .hotplug_poll = NULL, + .wrap_sys_device = NULL, + .open = null_open, + .close = null_close, + .get_device_descriptor = null_get_device_descriptor, + .get_active_config_descriptor = null_get_active_config_descriptor, + .get_config_descriptor = null_get_config_descriptor, + .get_config_descriptor_by_value = NULL, + .get_configuration = NULL, + .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, + .reset_device = null_reset_device, + .alloc_streams = NULL, + .free_streams = NULL, + .dev_mem_alloc = NULL, + .dev_mem_free = NULL, + .kernel_driver_active = NULL, + .detach_kernel_driver = NULL, + .attach_kernel_driver = NULL, + .destroy_device = NULL, + .submit_transfer = null_submit_transfer, + .cancel_transfer = null_cancel_transfer, + .clear_transfer_priv = null_clear_transfer_priv, + .handle_events = NULL, + .handle_transfer_completion = null_handle_transfer_completion, + .clock_gettime = null_clock_gettime, +#ifdef USBI_TIMERFD_AVAILABLE + .get_timerfd_clockid = NULL, +#endif + .context_priv_size = 0, + .device_priv_size = 0, + .device_handle_priv_size = 0, + .transfer_priv_size = 0, +}; |