cc Alexander Thanks On Thu, Jun 25, 2015 at 7:41 PM, Jayan John <jayanjohn79@xxxxxxxxx> wrote: > I am developing a custom USB device on a iMX6q platform (Wandboard) > Chipidea HDRC (highspeed dual role controller). The HID interface > consists of a single Interrupt IN ep and ep0. It is required to send > HID reports from Host to Gadget over ep0 (with set_report cmd on > hidraw interface) in OUT direction. The size of each HID report is 64 > bytes. > > The Chipidea HDRC is unable to receive/ process the 64 bytes of data > over ep0 (OUT). The setup stage is fine. No UDC interrupt is raised by > controller to indicate completion of transaction. The same data > transfer works fine for <64 bytes (63, 63 etc) and >64 bytes (65, 66 > etc) where the transfers are split as 64+n. Analyzer logs attached. > > 1. Is there an issue with Chipidea HDRC receiving wMaxPacketSize (i.e. > 64 byte) aligned data transfers on ep0 in OUT direction? > 2. Anything that needs to be configured/ added in descriptor or source > to have completion interrupt hit on 64 bytes data transfer on ep0 OUT? > > THank you!! -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
