Hi Nathan, Thanks again for the response. I hooked up my Ellisys USB Tracker to my Tungsten T and, when I do a hotsync, I see a total of 5 endpoints supported - in addition to the standard endpoint 0, there two bulk IN and two bulk OUT. Now, if I could figure out how to programmatically connect to them in the Palm, I'll be all set. Regarding accessing processor registers, I need to keep this generic and not processor-specific.
Best Regards, Dennis -----Original Message----- From: Nathan Westgarth [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 09, 2004 5:57 AM To: 'Dennis Burns' Subject: RE: USB Interface Hi Dennis, Yes, that is correct to some degree. It will respond to the standard 'get device/configuration descriptor/set address/set configured' requests, but I did have problems in my project, trying to get it to respond to a VSR required for my USB host controller so I actually had to go around the serial manager and basically replace the serial manager functions and do the enumeration by accessing the OMAP registers of my Tungsten|E :) If you are able to set up your host to send it the standard commands that it will respond to, you should have no problems. For my Tungsten|E I believe the serial manager sets up the USB device with only two bulk endpoints max packet size 64 bytes - one is IN and one OUT. Addresses are 0x81 and 0x02 (or something like that). The Tungsten|T is set up the same but the addresses are different. Depending on what Palm you are using it might be the same or might not.. I couldn't tell you. If you can work with this kind of setup on host side which is a typical 'Full Speed' USB device setup, you should be right! Otherwise let me know and I might be able to help out if you have a palm with OMAP processor in it. Cheers, Nathan -----Original Message----- From: Dennis Burns [mailto:[EMAIL PROTECTED] Sent: Wednesday, 9 June 2004 9:37 PM To: [EMAIL PROTECTED] Subject: RE: USB Interface Hello Nathan, Thanks for responding to my email. I am pretty familiar with USB and the enumeration process, and I have created slave-side code to support the enumeration process (i.e. responding to the standard requests). I can (and will) hook up my USB Tracker to view the process, but I had hoped for some documentation. For example, it's not clear to me how, if I see that multiple pipes are supported, that I connect to a specific one. Your comments however seem to indicate that the Palm device's serial manager will respond to the standard requests? Is that correct? Thanks again for the help, Dennis -----Original Message----- From: Nathan Westgarth [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 08, 2004 11:22 PM To: [EMAIL PROTECTED] Subject: Re: USB Interface If your 'USB device' has hosting capabilities you should be doing all the enumeration firmware/software on that <-- enumeration should be written on the HOST. You will only need to open the USB port on the Palm side using SrmExtOpen with the USB configtypes,etc (see Serial manager API). The host sends the device packets which it responds to, so once enumerated there will be more stuff you need to sort out with sending/receiving in the firmware/software on the host side. You should be able to hook up your Palm device to a PC and perform a hotsync to get all the relavent enumation info using a USB Snoop program (http://www.hhdsoftware.com has a good one). The info you need is located in the device and configuration descriptors and you may also need to look at any Vendor Specific Requests before the device is 'configured' (you will see that in the USB snoop output). If you need help with this I suggest you check out http://www.beyondlogic.com as they have very easy to understand explanations on the USB descriptors and USB in general. Cheers, Nathan Westgarth Grabba International "Dennis Burns" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > I am interfacing a USB device (with hosting capability) to a Palm > device. > Will I have to create the slave-side code to implement the enumeration > process, or is it available somewhere in a library? > So far, I haven't found anything other than reading one or more bytes > from the port. > > Thanks in advance, > Dennis > > > > > -- Outgoing mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.230 / Virus Database: 262.9.6 - Release Date: 24/04/2004 -- Incoming mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.230 / Virus Database: 262.9.6 - Release Date: 24/04/2004 -- Outgoing mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.230 / Virus Database: 262.9.6 - Release Date: 24/04/2004 -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
