Slide wrote:
Has anyone looked at what needs to be done, if anything, to support
USB 2.0 in the USB slave package? I noticed that only 1.1 is currently
supported based on the defines for supported version
#define USB_DEVICE_DESCRIPTOR_USB11_LO 0x10
#define USB_DEVICE_DESCRIPTOR_USB11_HI 0x01
Would supporting 2.0 be as simple as adding another define for 2.0? I
am not intimately familiar with USB, but if there is anything I can do
to help, I would be interested as we are looking at using eCos for an
internal board we are developing.
Thanks,
slide
Yes, if your hardware is 2.0 compatible, you can simply indicate that in
your device descriptor. (Yeah, we should probably add those constants to
the USB header). If it's a Full Speed device, that's probably all you
need to do. If it's a High Speed device you may have a little more work
to do to implement and/or debug the high speed enumeration. I don't
believe that any of the existing USB device drivers are for high speed
devices, so there may not be any implementation to negotiate into high
speed.
Frank
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
