Can't load firmware to HP LJ 1018

[Hans Petter Selasky]

On 2/2/21 12:19 AM, Hans Petter Selasky wrote:
> On 2/2/21 12:18 AM, Konstantin Svist wrote:
>> Hmm.. what is EPNO?
>>
>> Now that you mention it, I see /dev/usb/0.4.[01]. Only tried writing to
>> /dev/usb/0.4.0 before. Will try that and send an update with the results!
> 
> EPNO is endpoint number. 0 means control endpoint - don't use this. Try 
> some of the non-zero ones. It might be your lucky day ;-)
> 
> --HPS

Also I suspect you need to use "dd" and not "cat":

dd if=firmware.bin of=/dev/usb/0.4.1 bs=512

--HPS