Hello everyone, I am trying to use FEL mode with a F1C200s. Other people (owning the same device) report everything works fine. But for me it is very unstable. Sometimes the sunxi-fel command correctly detects the chip:
❯ sudo sunxi-fel --list --verbose Warning: no 'soc_sram_info' data for your SoC (id=1663) USB device 001:015 Allwinner 0x1663 But when I run the command again one second later, I get: ❯ sudo sunxi-fel --list --verbose libusb_open() ERROR -1: Input/Output Error I have a Wireshark trace of a successful call, and of a failing call. They start identical. Where the successful call gets to the URB_BULK out/in messages, the failing call does a "GET STATUS" request/response. The response is -EOVERFLOW. Reading online suggests failing hardware. I tried with three different cables, and cold rebooted my machine once. Of course, the chip could be bad. But is there something else that I might try before calling it quits? Like, a powered USB hub? (I don't currently own one.) Or using USB 2 ports? (I suspect my machine only contains USB 3 ports, but the device is using USB 2 because it is under the "ID 1d6b:0002 Linux Foundation 2.0 root hub".) With kind regards, Jurrie -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/6635f9ea-cf85-4b49-8d69-fcfe5a0f382bn%40googlegroups.com.
