On Fri, Apr 21, 2017 at 9:49 AM, Thomas Jarosch
<thomas.jarosch@xxxxxxxxxxxxx> wrote:
> Hello Yegor,
>
> On Friday, 21 April 2017 09:42:27 CEST Yegor Yefremov wrote:
>> # reset FTDI device
>> if ftdi.usb_reset(context) != 0:
>> print("Failed to reset FTDI device")
>> return False
>
> sorry, missed that part yesterday.
>
>> # close FTDI device
>> if ftdi.usb_close(context) != 0:
>> print("Failed to close FTDI device")
>> return False
>>
>> > Thought ftdi_usb_open() calls that internally anyway.
>>
>> Original FTDI API has two functions:
>>
>> FT_ResetDevice and FT_CyclePort. The latter is suitable for my case:
>>
>> "The effect of this function is the same as disconnecting then
>> reconnecting the device from USB. Possible use of this function is
>> situations where a fatal error has occurred and it is difficult, or
>> not possible, to recover without unplugging and replugging the USB
>> cable. This function can also be used after reprogramming the EEPROM
>> to force the FTDI device to read the new EEPROM contents which would
>> otherwise require a physical disconnect-reconnect."
>>
>> Though this routine is marked as "Windows (2000 and later) ".
>>
>> Any idea?
>
> may be this helps:
>
> https://askubuntu.com/questions/645/how-do-you-reset-a-usb-device-from-the-command-line
>
> Source for the short program:
> http://marc.info/?l=linux-usb&m=121459435621262&w=2
It works. Thanks.
Yegor
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