USB Hid driver Help

[Lucas Tanure <tanure@linux.com>]

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Hi,

I'm trying to write a Hid driver for MCP2210. But the USB Hid
specification is quite complicated.
I would like to know how to send and receive data to the device. Any
links to a good tutorial ?
This is my current driver is attached.

Thanks
Lucas

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#define DEBUG
#include <linux/module.h>
#include <linux/hid.h>
#include <linux/usb.h>

static int mcp2210_probe(struct hid_device *hdev,
			 const struct hid_device_id *id)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	int ret = 0;

	hid_dbg(hdev, "%s\n", __FUNCTION__);

	ret = hid_parse(hdev);
	if (ret) {
		hid_err(hdev, "parse failed\n");
		return ret;
	} else {
		hid_dbg(hdev, "parse success\n");
	}

	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
	if (ret) {
		hid_err(hdev, "hw start failed\n");
		return ret;
	} else {
		hid_dbg(hdev, "start success\n");
	}

	return 0;
}

static const struct hid_device_id mcp2210_table[] = {
	{ HID_USB_DEVICE(0x04d8, 0x00de) },
	{}
};

MODULE_DEVICE_TABLE(hid, mcp2210_table);

static struct hid_driver mcp2210_driver = {
	.name = "MCP2210 USB SPI Driver",
	.probe = mcp2210_probe,
	.id_table = mcp2210_table,
};

module_hid_driver(mcp2210_driver);

MODULE_AUTHOR("Lucas Tanure <tanure@linux.com>");
MODULE_DESCRIPTION("Core driver for MCP2210 USB SPI adapter");
MODULE_LICENSE("GPL v2");

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