linux-kernel - Re: [PATCH] usb: add new usb gadget for ACM and mass storage

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Message-ID: <4E8EB6EE.8040700@sensortherm.de>
Date:	Fri, 07 Oct 2011 10:23:10 +0200
From:	Klaus Schwarzkopf <schwarzkopf@...sortherm.de>
To:	balbi@...com
CC:	gregkh@...e.de, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: add new usb gadget for ACM and mass storage

Hi,

thanks for your comments. See my patch v2.

Am 06.10.2011 14:08, schrieb Felipe Balbi:

>
>> +#define CDC_VENDOR_NUM	0x1d6b	/* Linux Foundation */
>> +#define CDC_PRODUCT_NUM	0x0106	/* CDC Composite: ACM + MS*/
>
> did you ask Greg for this ?
>

Greg wrote:

I'll do that when I accept the patch for merging into the kernel, and 
not before.


>> +/*-------------------------------------------------------------------------*/
>> +
>> +/*
>> + * Kbuild is not very cooperative with respect to linking separately
>> + * compiled library objects into one module.  So for now we won't use
>> + * separate compilation ... ensuring init/exit sections work to shrink
>> + * the runtime footprint, and giving us at least some parts of what
>> + * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
>> + */
>> +
>> +#include "composite.c"
>> +#include "usbstring.c"
>> +#include "config.c"
>> +#include "epautoconf.c"
>> +#include "u_serial.c"
>> +#include "f_acm.c"
>> +#include "f_mass_storage.c"
>> +
>> +/*-------------------------------------------------------------------------*/
>> +
>> +static struct usb_device_descriptor device_desc = {
>> +	.bLength =		sizeof device_desc,
>> +	.bDescriptorType =	USB_DT_DEVICE,
>> +
>> +	.bcdUSB =		cpu_to_le16(0x0200),
>> +
>> +	.bDeviceClass =		USB_CLASS_COMM,
>> +	.bDeviceSubClass =	0,
>> +	.bDeviceProtocol =	0,
>> +	/* .bMaxPacketSize0 = f(hardware) */
>> +
>> +	/* Vendor and product id can be overridden by module parameters.  */
>> +	.idVendor =		cpu_to_le16(CDC_VENDOR_NUM),
>> +	.idProduct =		cpu_to_le16(CDC_PRODUCT_NUM),
>> +	/* .bcdDevice = f(hardware) */
>> +	/* .iManufacturer = DYNAMIC */
>> +	/* .iProduct = DYNAMIC */
>> +	/* NO SERIAL NUMBER */
>
> why not ? If someone wants to make a product out of this, they will need
> a serial number.
>

If an developer want a serial number, he can change this.

>> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
>> index dd1571d..f623f3d 100644
>> --- a/include/linux/usb/gadget.h
>> +++ b/include/linux/usb/gadget.h
>> @@ -15,6 +15,7 @@
>>   #ifndef __LINUX_USB_GADGET_H
>>   #define __LINUX_USB_GADGET_H
>>
>> +#include<linux/device.h>
>
> this is not part of $SUBJECT
>

changed git message

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