Hello, 
I'm using Spectrum Digital evaluation board with TMS320VC5509A. Currently i'm developing USB
device driver on this platform. I'm using CSL library without DSP/BIOS and an example code for
USB driver, which i downloaded from Spectrum Digital website. 
My problem is following : I need two pairs of bulk enpoints, e.g. EP2 IN and OUT , EP3 IN and
OUT . I implement the same code for each pair, but only EP2 is working. Any other endpoint that
i tried besides EP2 do not response for events. They do not enter into handler function, which
defined in USB_initEndptObj function. 
>From the host side, the implementation is based on libusb 0.1.12. Set configuration and
Claim interface functions are working fine, but if then i try to read/write any EP besides EP2,
i receive error -22 ( invalid argument ). 

Is anybody familiar with such issue? Can you help me to solve it ? 
Maybe you have some other examples for such driver. 

Thank you in advance for your cooperation. 

Dima Stolberg 
R&D Engineer 
Tel: +972-3-6093085 
Fax: +972-3-6093089 
D...@biopad.com 
www.biopad.com