On 06.07.2016 10:32, Alexey Brodkin wrote: > Hi Oleksij, > > On Wed, 2016-07-06 at 10:24 +0200, fixed-term.Oleksij.Rempel wrote: >> >> Hm... this Endpoint should be Interrupt, not Bulk. If you search for >> lsusb of this kind of adapter all of them list EP3 and EP4 as Interrupt. >> >> what did went wrong here? Is it not working in USB High Speed mode? > > Unfortunately as of now on that board EHCI doesn't work. > > That's not a problem of a particular USB device but something in either > ECHI host controller or its integration. I do hope we will fix it sometime > soon > (this is a development board and USB controller is implemented in FPGA so > there's a chance to fix stuff later on). > > So given only OHCI works on the board I went forward and attempted to use it > with Wi-Fi USB dongle.
I did some tests for 2 years on OHCI controller on x86. There was no noticable issues. It was even a bit faster then Intels EHCI. I don't think OHCI alone is the source of this problem. On other side, so far i know, this adapter claims to provide usb full speed support, (Not only high speed) and may use different usb descriptor for this. May be this is the problem. _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
