diff options
Diffstat (limited to 'libusb/os/linux_usbfs.c')
| -rw-r--r-- | libusb/os/linux_usbfs.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libusb/os/linux_usbfs.c b/libusb/os/linux_usbfs.c index d690511..e2c4234 100644 --- a/libusb/os/linux_usbfs.c +++ b/libusb/os/linux_usbfs.c @@ -1190,6 +1190,38 @@ static int op_detach_kernel_driver(struct libusb_device_handle *handle, return 0; } +static int op_attach_kernel_driver(struct libusb_device_handle *handle, + int interface) +{ + int fd = __device_handle_priv(handle)->fd; + struct usbfs_ioctl command; + int r; + + command.ifno = interface; + command.ioctl_code = IOCTL_USBFS_CONNECT; + command.data = NULL; + + r = ioctl(fd, IOCTL_USBFS_IOCTL, &command); + if (r < 0) { + if (errno == ENODATA) + return LIBUSB_ERROR_NOT_FOUND; + else if (errno == EINVAL) + return LIBUSB_ERROR_INVALID_PARAM; + else if (errno == ENODEV) + return LIBUSB_ERROR_NO_DEVICE; + else if (errno == EBUSY) + return LIBUSB_ERROR_BUSY; + + usbi_err(HANDLE_CTX(handle), + "attach failed error %d errno %d", r, errno); + return LIBUSB_ERROR_OTHER; + } else if (r == 0) { + return LIBUSB_ERROR_NOT_FOUND; + } + + return 0; +} + static void op_destroy_device(struct libusb_device *dev) { struct linux_device_priv *priv = __device_priv(dev); @@ -2023,6 +2055,7 @@ const struct usbi_os_backend linux_usbfs_backend = { .kernel_driver_active = op_kernel_driver_active, .detach_kernel_driver = op_detach_kernel_driver, + .attach_kernel_driver = op_attach_kernel_driver, .destroy_device = op_destroy_device, |