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--></style></head><body lang=ZH-CN link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Dear all,</span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Recently I bought a device ATUSB which uses dfu-util 0.7 to write the flash. I use my Raspberry Pi 4 and it runs Ubuntu 20.04. After installing dfu-util 0.7, I run the following commands to flash atusb firmware into it.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>$ sudo dfu-util -l<o:p></o:p></span></b></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>dfu-util 0.7<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Copyright 2005-2008 Weston Schmidt, Harald Welte and OpenMoko Inc.<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Copyright 2010-2012 Tormod Volden and Stefan Schmidt<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>This program is Free Software and has ABSOLUTELY NO WARRANTY<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Please report bugs to dfu-util@lists.gnumonks.org<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Found Runtime: [20b7:1540] devnum=0, cfg=1, intf=1, alt=0, name="UNDEFINED"<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></i></p><p class=MsoNormal><b><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>$ sudo dfu-util -v -D ./atusb.dfu<o:p></o:p></span></b></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>dfu-util 0.7<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Copyright 2005-2008 Weston Schmidt, Harald Welte and OpenMoko Inc.<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Copyright 2010-2012 Tormod Volden and Stefan Schmidt<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>This program is Free Software and has ABSOLUTELY NO WARRANTY<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Please report bugs to dfu-util@lists.gnumonks.org<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Opening DFU capable USB device... ID 20b7:1540<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Did not find cached descriptor<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>WARNING: Can not find cached DFU functional descriptor<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Warning: Assuming DFU version 1.0<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Run-time device DFU version 0100<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Claiming USB DFU Runtime Interface...<o:p></o:p></span></i></p><p class=MsoNormal><b><i><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Cannot set alt interface zero<o:p></o:p></span></i></b></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>After this error is shown, the LED on my ATUSB is blinking. Any idea? I have tried reinstalling dfu-util or rebooting, but none of them work. Any advice is appreciated.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Yours,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'>Jerry<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:SimSun'><o:p> </o:p></span></p></div></body></html>