Date: Wed, 26 Aug 2020 10:35:06 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Wojciech Puchar <wojtek@puchar.net>, freebsd-hackers@freebsd.org Subject: Re: USB experts help needed Message-ID: <4276557d-8364-29de-6bdc-f9280008d847@selasky.org> In-Reply-To: <alpine.BSF.2.20.2008261012170.79099@puchar.net> References: <alpine.BSF.2.20.2008261012170.79099@puchar.net>
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On 2020-08-26 10:16, Wojciech Puchar wrote: > i am implementing my own "mass storage device" (actually fake but > doesn't matter) on microcontroller. > > I already finished implementing control endpoint part so it is properly > detected configured itp. > > But i have no idea why i'm getting USB reset after successful reply to > "get max lun" control endpoint command (0xFE). i reply with one byte of > zero according to USB mass storage specs. > > below is log from my microcontroller's program > > USB: RESET > USB: Setting USB address 6 > USB: Host received response from control interface. > USB: Sending config descriptor 0100:8 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0100:18 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0300:2 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0300:4 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0301:2 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0301:32 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0302:2 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0302:12 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0200:9 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0200:32 bytes. > USB: Host received response from control interface. > USB: Set configuration 1 received. > USB: Host received response from control interface. > USB: Mass storage get MAX LUN received. > USB: Host received response from control interface. > USB: RESET > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > USB: Setting USB address 6 > USB: Host received response from control interface. > USB: Sending config descriptor 0100:8 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0100:18 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0200:9 bytes. > USB: Host received response from control interface. > USB: Sending config descriptor 0200:32 bytes. > USB: Host received response from control interface. > USB: Set configuration 1 received. > USB: Host received response from control interface. > USB: Mass storage reset received. > USB: Host received response from control interface. > USB: Clear endpoint 1 received. > USB: Host received response from control interface. > Are you sure the firmware on your device didn't crash and reboot? --HPS
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