Date: Mon, 13 Jan 2020 15:48:36 +0100 (CET) From: Wojciech Puchar <wojtek@puchar.net> To: Hans Petter Selasky <hps@selasky.org> Cc: Wojciech Puchar <wojtek@puchar.net>, freebsd-hackers@freebsd.org Subject: Re: raspberry pi zero and SLOW USB HID Message-ID: <alpine.BSF.2.20.2001131548230.36878@puchar.net> In-Reply-To: <0b30136c-d5d8-bdaa-81d3-f147442afc96@selasky.org> References: <alpine.BSF.2.20.2001131439440.2189@puchar.net> <9f8ae63f-abe5-27d9-e6bf-3d0cc1d3d4f3@selasky.org> <alpine.BSF.2.20.2001131532570.36878@puchar.net> <0b30136c-d5d8-bdaa-81d3-f147442afc96@selasky.org>
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putting a hub in between makes things FAR worse. On Mon, 13 Jan 2020, Hans Petter Selasky wrote: > 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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