On Sunday 29 November 2020 17:46:05 Pali Rohár wrote: > With current implementation there is an issue in musb driver that it > loose receiving bytes from USB bus when too many a characters are send > over USB tty from computer. Typing on keyboard to kermit terminal > connected to /dev/ttyACM0 is working fine. But pasting more more bytes > to terminal cause data lost on receiving side. I do not know where is > the issue or how to fix it (it looks like that data are lost at low > level when reading them from msub FIFO hardware) but typing on keyboard > is working fine. This is rather issue for sending files via x/y/z-modem > or kermit protocol. Currently U-Boot is not able to receive any file > via usbtty with musb driver due to this issue.
This musb issue is fixed in second patch series "usbtty/musb: Fix file transfers"
