Messages in this thread Patch in this message | | | Date | Thu, 24 Mar 2011 16:40:36 +0100 | From | Stefan Bigler <> | Subject | Re: TTY loosing data with u_serial gadget |
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Can you try this: > diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c > index 2f119e2..f0b9fb6 100644 > --- a/drivers/tty/tty_buffer.c > +++ b/drivers/tty/tty_buffer.c
I tried it and the console is working again. There is still an problem on heavy load transfer from host to gadget. I attached the patch to fix also this problem.
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 8e0f113..95d0a9c 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1359,6 +1359,7 @@ static unsigned int n_tty_receive_buf(struct tty_struct *tty, memcpy(tty->read_buf + tty->read_head, cp, i); tty->read_head = (tty->read_head + i) & (N_TTY_BUF_SIZE-1); tty->read_cnt += i; + ret += i; spin_unlock_irqrestore(&tty->read_lock, cpuflags); } else { ret = count; With this patch I was able to transfer gigabytes without lost data.
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