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Hello all,

Hi
The following gives you the microsoft enumeration sequence.
* Reset
* Get Device Descriptor.(18 bytes).
* Reset
* Set address.
* Get device descriptor (18 bytes).
* Get config descriptor (9 bytes).
* Get config descriptor (all bytes).
* Set configuration.

Regards,
Ravi
----- Original Message ----- 
From: <rkumar_31@y...>
To: <jlin87@y...>; <usb@o...>
Sent: Tuesday, May 04, 2004 11:48 PM
Subject: Re: [usb] HOW TO Clear STALL condition?

> Hello all,
> can some one give me the microsoft enumeration sequence ?
> 
> Thankyou
> ravi
> 
> 
> ----- Original Message ----- 
> From: Jeff Lin <jlin87@y...> 
> To: usb@o..., midas@j... 
> Date: Wed, 12 Nov 2003 15:01:29 -0800 (PST) 
> Subject: Re: [usb] HOW TO Clear STALL condition? 
> 
> > Here you are setting 2B wIndex = 0x8200. That could be the source 
> > of probelm. 
> > According to spec, you will need to set wIndex tto EP for clear 
> > feature of EPs. 
> > You may want to try with wIndex = 2, the EP#, i.e. 
> > Setup,payload(0x02,0x01,00,00, 00, 02, 00,00),In, 
> > 
> > Do update. 
> > midas@j... wrote: 
> > i have already tried your method, but still fail. 
> > following is my messages: 
> > CLEAR_FEATURE sequence: 
> > Setup,payload(0x02,0x01,00,00,0x82,00,00,00),In, 
> > endpoint 0x02 ,address 0x08(my define) 
> > but it still gets "STALL". 
> > Is my method wrong? Or should I use other commands? 
> > Thanks a lot. 
> > ----- Original Message ----- 
> > From: "Gayathri Seshadri" 
> > To: 
> > Date: Fri, 3 Oct 2003 09:38:18 +0530 
> > Subject: Re: [usb] HOW TO Clear STALL condition? 
> > > 
> > > 
> > > Hi, 
> > > 
> > > As far as my experience with the USB mass storage protocol, i 
> > would 
> > > suggest you to do a clear feature endpoint stall to the IN 
> > endpoint 
> > > of the 
> > > bulk type. Normally the cbw suggests the expected no. of bytes 
> > in 
> > > one of 
> > > its 31 bytes and the bulk IN endpoint if has only lesser to 
> > the 
> > > expected no. 
> > > of bytes, it sends a STALL. 
> > > As i suggested earlier, you can try "CLEAR_FEATURE"(endpoint 
> > stall) 
> > > for 
> > > the bulk in endpoint that stalled. 
> > > 
> > > Let me know if this helped.. 
> > > 
> > > Regards, 
> > > Gayathri Seshadri. 
> > > 
> > > ----- Original Message ----- 
> > > From: 
> > > To: 
> > > Sent: Thursday, October 02, 2003 1:36 PM 
> > > Subject: [usb] HOW TO Clear STALL condition? 
> > > 
> > > 
> > > > Hi, 
> > > > I'm a newbie to USB and USB mass storage devices. 
> > > > I have a little trouble with my Cypress SL811HS Host 
> > > Controller. 
> > > > I've got the device to enumerate and I've found all of 
> > it's 
> > > endpoints and 
> > > > I'm able to send CBW's to the bulk OUT endpoint and read 
> > my 
> > > data from 
> > > > the IN endpoint as well as getting my CSW out from the IN 
> > > endpoint. 
> > > > For certain commands like INQUIRY and REQUEST SENSE I 
> > have 
> > > already 
> > > > been able to execute in the following sequence.. 
> > > > 1. Send CBW to bulk OUT endpoint 
> > > > 2. Read DATA from bulk IN endpoint 
> > > > 3. Read CSW from bulk IN endpoint. 
> > > > 
> > > > For commands like READ_10 and READ_CAPACITY use sequence 
> > > above. 
> > > > The device WILL be stalled by host. 
> > > > Is this STALL just a handshaking message to differentiate 
> > a 
> > > data 
> > > > transfer from a CSW transfer? And how to clear this STALL 
> > > condition? 
> > > > I approciate your help. 
> > > > 
> > > > i.e. 
> > > > Read_Capacity 
> > > > Host Device 
> > > > OUT_CBW -> 
> > > > In -> 
> > > > <- Data(1st) 
> > > > In -> 
> > > > <- Data(2nd) 
> > > > In -> 
> > > > <- Data(3rd) 
> > > > In -> 
> > > > <- Data(4th) 
> > > > In -> 
> > > > <- Data(5th) 
> > > > In -> 
> > > > <- Data(6th) 
> > > > In -> 
> > > > STALL -> //How to clear 
> > > this stall 
> > > message 
> > > > //and 
> > > continue getting 
> > > the following 
> > > > //data? 
> > > > 
> > > > 
> > > > 
> > > 
> >  Do you Yahoo!? 
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> > 
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