On Sat, 2007-05-05 at 11:08 -0500, Paul Fulghum wrote: > I would argue that cdc-acm should do the same as the serial driver. Try this patch for the usb ports. (I don't have that hardware) --- a/drivers/usb/class/cdc-acm.c 2007-04-25 22:08:32.000000000 -0500 +++ b/drivers/usb/class/cdc-acm.c 2007-05-05 11:12:10.000000000 -0500 @@ -355,18 +355,9 @@ next_buffer: spin_lock_irqsave(&acm->throttle_lock, flags); throttled = acm->throttle; spin_unlock_irqrestore(&acm->throttle_lock, flags); - if (!throttled) - tty_insert_flip_string(tty, buf->base, buf->size); + tty_insert_flip_string(tty, buf->base, buf->size); tty_flip_buffer_push(tty); - if (throttled) { - dbg("Throttling noticed"); - spin_lock_irqsave(&acm->read_lock, flags); - list_add(&buf->list, &acm->filled_read_bufs); - spin_unlock_irqrestore(&acm->read_lock, flags); - return; - } - spin_lock_irqsave(&acm->read_lock, flags); list_add(&buf->list, &acm->spare_read_bufs); spin_unlock_irqrestore(&acm->read_lock, flags); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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