Hi :-) Currently, I tried to support usb camera on the fotg210 host controller but came across a few issues, for example system crash, video streaming error, etc. As fotg210 is an ehci-like controller, I borrowed some ideas from the ehci-hcd driver, and at least the usb camera can work now. By the way, the fotg210-hcd driver seems a bit out of date, is there any plan to update it based on the latest ehci-hcd driver? Thank you! Kelly Devilliv (3): Revert "usb: host: fotg210: Use dma_pool_zalloc" usb: host: fotg210: fix the endpoint's transactional opportunities calculation usb: host: fotg210: fix the actual_length of an iso packet drivers/usb/host/fotg210-hcd.c | 48 +++++++++++++++++----------------- drivers/usb/host/fotg210.h | 5 ---- 2 files changed, 24 insertions(+), 29 deletions(-) -- 2.25.1