[U-Boot] USB3.0 Interrupt transfer in u-boot

Hello,
I want to test USB keyboard for XHCI in u-boot and to do that i need the Interrupt transfer code in XHCI controller driver in u-boot. If possible, can you help me to give that piece of code or can you help me to figure out in kernel where can i find it so that i can try to replicate it in u-boot and make it work.
Thanks & Regards -- Puneet Sharma puneet.sharma@moschip.com
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Hello Puneet,
On Thu, Apr 4, 2013 at 11:55 AM, Puneet Sharma puneet.sharma@moschip.com wrote:
Hello,
I want to test USB keyboard for XHCI in u-boot and to do that i need the Interrupt transfer code in XHCI controller driver in u-boot. If possible, can you help me to give that piece of code or can you help me to figure out in kernel where can i find it so that i can try to replicate it in u-boot and make it work.
We had posted some patches for XHCI stack driver, but unfortunately that didn't have support for interrupt transfer. Please check in the Linux kernel (drivers/usb/host/xhci*), see if you can find something for your use which can be added to this XHCI stack to enable support for interrupt transfer.

Hello Vivek,
I did made use of the patches you added for XHCI support in u-boot and with the help of them only was able to enumerate USB devices connected over USB3.0 port and also do BULK transfer.
With respect to Interrupt transfer, i did tried to make use of kernel code but unfortunately couldn't made it work. If you can give some tips or guidance of where should i look that would be very helpful for me.
Thanks Puneet
On Thu, 2013-04-04 at 16:33 +0530, Vivek Gautam wrote:
Hello Puneet,
On Thu, Apr 4, 2013 at 11:55 AM, Puneet Sharma puneet.sharma@moschip.com wrote:
Hello,
I want to test USB keyboard for XHCI in u-boot and to do that i need the Interrupt transfer code in XHCI controller driver in u-boot. If possible, can you help me to give that piece of code or can you help me to figure out in kernel where can i find it so that i can try to replicate it in u-boot and make it work.
We had posted some patches for XHCI stack driver, but unfortunately that didn't have support for interrupt transfer. Please check in the Linux kernel (drivers/usb/host/xhci*), see if you can find something for your use which can be added to this XHCI stack to enable support for interrupt transfer.
-- Puneet Sharma puneet.sharma@moschip.com
The information contained in this email and any attachments is confidential and may be subject to copyright or other intellectual property protection. If you are not the intended recipient, you are not authorized to use or disclose this information, and we request that you notify us by reply mail or telephone and delete the original message from your mail system.
participants (2)
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Puneet Sharma
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Vivek Gautam