diff options
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 5b15d9d8896b..2bfc41ece0e1 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -387,7 +387,6 @@ static void acm_rx_tasklet(unsigned long _acm) struct acm_ru *rcv; unsigned long flags; unsigned char throttled; - struct usb_host_endpoint *ep; dbg("Entering acm_rx_tasklet"); @@ -463,14 +462,12 @@ urbs: rcv->buffer = buf; - ep = (usb_pipein(acm->rx_endpoint) ? acm->dev->ep_in : acm->dev->ep_out) - [usb_pipeendpoint(acm->rx_endpoint)]; - if (usb_endpoint_xfer_int(&ep->desc)) + if (acm->is_int_ep) usb_fill_int_urb(rcv->urb, acm->dev, acm->rx_endpoint, buf->base, acm->readsize, - acm_read_bulk, rcv, ep->desc.bInterval); + acm_read_bulk, rcv, acm->bInterval); else usb_fill_bulk_urb(rcv->urb, acm->dev, acm->rx_endpoint, @@ -750,7 +747,7 @@ static int acm_tty_chars_in_buffer(struct tty_struct *tty) { struct acm *acm = tty->driver_data; if (!ACM_READY(acm)) - return -EINVAL; + return 0; /* * This is inaccurate (overcounts), but it works. */ @@ -1183,6 +1180,9 @@ made_compressed_probe: spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); + acm->is_int_ep = usb_endpoint_xfer_int(epread); + if (acm->is_int_ep) + acm->bInterval = epread->bInterval; tty_port_init(&acm->port); acm->port.ops = &acm_port_ops; |