gnupic: Re: [gnupic] USB code, PICDEM FS USB and Linux
Subject:
Re: [gnupic] USB code, PICDEM FS USB and Linux
From:
Ben Dugan ####@####.####
Date:
7 Feb 2006 20:44:38 +0000
Message-Id: <43E90623.4000306@curdes.com>
Alessandro and Xiaofan,
Thanks for your recent emails about this. I committed the faux-pas of
asking a question and then going on vacation, so I have only read the
responses now. I will be trying the vendor-request stuff out soon and
I'll write to the list about what I find. I think it might cover what I
need; I only need to transmit small amounts of data to my usb device.
Anyway, thanks again.
Ben
Alessandro Zummo wrote:
> On Sat, 28 Jan 2006 16:47:39 +0800
> Xiaofan Chen ####@####.#### wrote:
>
>
>>I think interrupt transfer is not necessary. It seems to me that lab2
>>code only implements control transfer (EP0).
>
>
> I've added support for vendor requests (attached). now you can use
> libusb/usb_control_msg to send minimal data to the device using
> the index and value field. It can be useful for small application.
>
> I'm not sure I've implemented it correctly, but it works ;)
>
> I think that's the last thing I want to do in assembly for USB
> next step: find something for sdcc.
>
>
>>> Do you know if there's an SDCC version of any USB code that can work
>>> with the PICDEM FS USB?
>
>
>>I only know the following but I have not tried it yet. Hope this helps.
>>The email should be in the mailing list archive but I forward it here again.
>
>
> I'll have to try it, thanks.
>
>
>
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