Date: Mon, 13 Jan 2020 15:42:21 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Wojciech Puchar <wojtek@puchar.net> Cc: freebsd-hackers@freebsd.org Subject: Re: raspberry pi zero and SLOW USB HID Message-ID: <0b30136c-d5d8-bdaa-81d3-f147442afc96@selasky.org> In-Reply-To: <alpine.BSF.2.20.2001131532570.36878@puchar.net> References: <alpine.BSF.2.20.2001131439440.2189@puchar.net> <9f8ae63f-abe5-27d9-e6bf-3d0cc1d3d4f3@selasky.org> <alpine.BSF.2.20.2001131532570.36878@puchar.net>
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On 2020-01-13 15:39, Wojciech Puchar wrote: >> >> Hi, >> >> Can you check the USB speed used between PC and RPI-zero ? Is one >> perhaps High-Speed, while the other is, Full-Speed? > > below: > > ugen0.1: <DWCOTG OTG Root HUB> at usbus0, cfg=0 md=HOST spd=HIGH > (480Mbps) pwr=SAVE (0mA) > > ^^^^^^ this is RPI > > ugen0.2: <Digital USB HID Progr> at usbus0, cfg=0 md=HOST spd=FULL > (12Mbps) pwr=ON (100mA) > ^^^^^^^^^^ this is our device. and it is normally full speed. > > Hi, Can you measure the number of requests per second you get on the two different platforms? It might also be a firmware issue, like Warner says. --HPS
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