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usb-tools / USBProxy-legacy

A proxy for USB devices, libUSB and gadgetFS - this project is unmaintained, try here: https://github.com/usb-tools/Facedancer
GNU General Public License v2.0
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Should it work with sunxi_usb_udc driver (Allwinner SOCs)? #64

Closed Andymion closed 7 years ago

Andymion commented 7 years ago

I use Armbian with mainline kernel. Gadgetfs is loaded (according to lsmod listing). Module Size Used by uas 20480 0 gadgetfs 24576 0 sun8i_codec_analog 24576 0 snd_soc_core 122880 1 sun8i_codec_analog snd_pcm_dmaengine 16384 1 snd_soc_core snd_pcm 77824 2 snd_pcm_dmaengine,snd_soc_core sun8i_ths 16384 0 thermal_sys 57344 1 sun8i_ths uio_pdrv_genirq 16384 0 uio 16384 1 uio_pdrv_genirq usb_f_acm 16384 1 u_serial 20480 4 usb_f_acm g_serial 16384 0 libcomposite 40960 2 g_serial,usb_f_acm

However I've got an error connected to gadgetfs:

Made directory /tmp/gadget-JddHVl for gadget Error mounting gadgetfs from [/tmp/gadget-JddHVl]. Error code from mount is: [No such device] searching in [/tmp/gadget-0kQbeB] /tmp/gadget-0kQbeB device file not found. Error, unable to find gadget file. Fail on open 11 Resource temporarily unavailable GadgetFS not connected.

Where should I dig in?

marcosox commented 7 years ago

you need to rmmod also libcomposite, g_serial and usb_f_acm. I agree that it should be documented somewhere, since this question comes up often (and I learned these things by trial and error). Note that the modules must be removed before loading gadgetfs

Andymion commented 7 years ago

Thanks a lot, marcosox! This was really unclear, but it works.