#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/usb.h>
+#include <linux/usb/cdc.h>
#include <linux/usb/serial.h>
struct xr_txrx_clk_mask {
static int xr_probe(struct usb_serial *serial, const struct usb_device_id *id)
{
- /* Don't bind to control interface */
- if (serial->interface->cur_altsetting->desc.bInterfaceNumber == 0)
+ struct usb_interface *control = serial->interface;
+ struct usb_host_interface *alt = control->cur_altsetting;
+ struct usb_cdc_parsed_header hdrs;
+ struct usb_cdc_union_desc *desc;
+ struct usb_interface *data;
+ int ret;
+
+ ret = cdc_parse_cdc_header(&hdrs, control, alt->extra, alt->extralen);
+ if (ret < 0)
return -ENODEV;
+ desc = hdrs.usb_cdc_union_desc;
+ if (!desc)
+ return -ENODEV;
+
+ data = usb_ifnum_to_if(serial->dev, desc->bSlaveInterface0);
+ if (!data)
+ return -ENODEV;
+
+ ret = usb_serial_claim_interface(serial, data);
+ if (ret)
+ return ret;
+
return 0;
}
static const struct usb_device_id id_table[] = {
- { USB_DEVICE(0x04e2, 0x1410) }, /* XR21V141X */
+ { USB_DEVICE_INTERFACE_CLASS(0x04e2, 0x1410, USB_CLASS_COMM) }, /* XR21V141X */
{ }
};
MODULE_DEVICE_TABLE(usb, id_table);