embeded/odroid
odroid c2 usb otg, libcomposite usb hid
구차니
2021. 9. 26. 08:51
방법들은 비슷한데.. 따라하는데 영 안되네?
functions 디렉토리에 hid.usb0 디렉토리를 생성하는데 에러가 발생.
| #!/bin/bash # From the README at https://github.com/girst/hardpass dtoverlay dwc2 modprobe dwc2 modprobe libcomposite cd /sys/kernel/config/usb_gadget/ mkdir -p g1 cd g1 echo 0x1d6b > idVendor # Linux Foundation echo 0x0104 > idProduct # Multifunction Composite Gadget echo 0x0100 > bcdDevice # v1.0.0 echo 0x0200 > bcdUSB # USB2 mkdir -p strings/0x409 echo "fedcba9876543210" > strings/0x409/serialnumber echo "girst" > strings/0x409/manufacturer echo "Hardpass" > strings/0x409/product N="usb0" mkdir -p functions/hid.$N echo 1 > functions/hid.usb0/protocol echo 1 > functions/hid.usb0/subclass echo 8 > functions/hid.usb0/report_length echo -ne \\x05\\x01\\x09\\x06\\xa1\\x01\\x85\\x01\\x05\\x07\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08\\x81\\x02\\x95\\x01\\x75\\x08\\x81\\x03\\x95\\x05\\x75\\x01\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x05\\x75\\x08\\x15\\x00\\x25\\x65\\x05\\x07\\x19\\x00\\x29\\x65\\x81\\x00\\xc0\\x05\\x01\\x09\\x02\\xa1\\x01\\x09\\x01\\xa1\\x00\\x85\\x02\\x05\\x09\\x19\\x01\\x29\\x03\\x15\\x00\\x25\\x01\\x95\\x03\\x75\\x01\\x81\\x02\\x95\\x01\\x75\\x05\\x81\\x03\\x05\\x01\\x09\\x30\\x09\\x31\\x15\\x81\\x25\\x7f\\x75\\x08\\x95\\x02\\x81\\x06\\xC0\\xC0 > functions/hid.usb0/report_desc C=1 mkdir -p configs/c.$C/strings/0x409 echo "Config $C: ECM network" > configs/c.$C/strings/0x409/configuration echo 250 > configs/c.$C/MaxPower ln -s functions/hid.usb0 configs/c.$C/ ls /sys/class/udc > UDC |
[링크 : https://ndb796.tistory.com/481]
[링크 : https://www.isticktoit.net/?p=1383]
[링크 : https://www.sysnet.pe.kr/2/0/11363]
혹시 권한 문제인가 해서 추가해도 안되고..
sysfs 특성이라 드라이버에서 허가되지 않는 파일은 생성이 안되는 것 같은데 왜 일까..
| # ls -al drwxr-xr-x 2 root root 0 Sep 26 09:15 functions # chmod 777 functions/ # ls -al drwxrwxrwx 2 root root 0 Sep 26 09:15 functions # mkdir hid.usb0 mkdir: cannot create directory 'hid.usb0': No such file or directory # touch hid.usb0 touch: cannot touch 'hid.usb0': Permission denied |
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3.16 커널인데 3.19 이후 부터 된다고. 드라이버 지원(하드웨어 가속)을 포기하고 신버전을 써봐야 할지도?
| # ll /lib/modules/3.16.72-46/kernel/drivers/usb/gadget/ total 804 drwxr-xr-x 2 root root 4096 Aug 13 2019 ./ drwxr-xr-x 7 root root 4096 Aug 13 2019 ../ -rw-r--r-- 1 root root 14424 Aug 13 2019 g_acm_ms.ko -rw-r--r-- 1 root root 23784 Aug 13 2019 g_audio.ko -rw-r--r-- 1 root root 12048 Aug 13 2019 g_cdc.ko -rw-r--r-- 1 root root 14920 Aug 13 2019 g_ether.ko -rw-r--r-- 1 root root 19632 Aug 13 2019 g_ffs.ko -rw-r--r-- 1 root root 24208 Aug 13 2019 g_hid.ko # insmod g_hid insmod: ERROR: could not load module g_hid: No such file or directory # modprobe g_hid modprobe: ERROR: could not insert 'g_hid': No such device # uname -a Linux odroid 3.16.72-46 #1 SMP PREEMPT Tue Aug 13 18:09:58 -03 2019 aarch64 aarch64 aarch64 GNU/Linux |