diff options
| author | Simon Arlott <simon@fire.lp0.eu> | 2010-09-01 18:37:12 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-20 13:36:22 -0700 |
| commit | aef30a0bfdf6c10565285fff1ae8400b34ee0d81 (patch) | |
| tree | 3ee4c3f0f6e5cf11cc9f1aa0bc73c28c9d40b699 /drivers | |
| parent | 652d6da0a0a42632330737e1d6d87c82da819fcf (diff) | |
USB: cxacru: Use a bulk/int URB to access the command endpoint
commit 902ffc3c707c1d459ea57428a619a807cbe412f9 upstream.
The command endpoint is either a bulk or interrupt endpoint, but using
the wrong type of transfer causes an error if CONFIG_USB_DEBUG is
enabled after commit f661c6f8c67bd55e93348f160d590ff9edf08904, which
checks for this mismatch.
Detect which type of endpoint it is and use a bulk/int URB as
appropriate. There are other function calls specifying a bulk pipe,
but usb_clear_halt doesn't use the pipe type (only the endpoint) and
usb_bulk_msg auto-detects interrupt transfers.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/atm/cxacru.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index c89990f5e018..b24025d9dd23 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -1128,6 +1128,7 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, { struct cxacru_data *instance; struct usb_device *usb_dev = interface_to_usbdev(intf); + struct usb_host_endpoint *cmd_ep = usb_dev->ep_in[CXACRU_EP_CMD]; int ret; /* instance init */ @@ -1172,15 +1173,34 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, goto fail; } - usb_fill_int_urb(instance->rcv_urb, + if (!cmd_ep) { + dbg("cxacru_bind: no command endpoint"); + ret = -ENODEV; + goto fail; + } + + if ((cmd_ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) + == USB_ENDPOINT_XFER_INT) { + usb_fill_int_urb(instance->rcv_urb, usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD), instance->rcv_buf, PAGE_SIZE, cxacru_blocking_completion, &instance->rcv_done, 1); - usb_fill_int_urb(instance->snd_urb, + usb_fill_int_urb(instance->snd_urb, usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD), instance->snd_buf, PAGE_SIZE, cxacru_blocking_completion, &instance->snd_done, 4); + } else { + usb_fill_bulk_urb(instance->rcv_urb, + usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD), + instance->rcv_buf, PAGE_SIZE, + cxacru_blocking_completion, &instance->rcv_done); + + usb_fill_bulk_urb(instance->snd_urb, + usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), + instance->snd_buf, PAGE_SIZE, + cxacru_blocking_completion, &instance->snd_done); + } mutex_init(&instance->cm_serialize); |