[PATCH] USB: implement error event in usbmon

[linux-2.6-omap-h63xx.git] / drivers / usb / mon / mon_text.c

diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index 9f9236bf62d24117bf909a71eecb87ba16401d0d..e02c1a30c4cd4d65d852ce010d522c05e594c256 100644 (file)
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -182,6 +182,32 @@ static void mon_text_complete(void *data, struct urb *urb)
        mon_text_event(rp, urb, 'C');
 }
 
+static void mon_text_error(void *data, struct urb *urb, int error)
+{
+       struct mon_reader_text *rp = data;
+       struct mon_event_text *ep;
+
+       if (rp->nevents >= EVENT_MAX ||
+           (ep = kmem_cache_alloc(rp->e_slab, SLAB_ATOMIC)) == NULL) {
+               rp->r.m_bus->cnt_text_lost++;
+               return;
+       }
+
+       ep->type = 'E';
+       ep->pipe = urb->pipe;
+       ep->id = (unsigned long) urb;
+       ep->tstamp = 0;
+       ep->length = 0;
+       ep->status = error;
+
+       ep->setup_flag = '-';
+       ep->data_flag = 'E';
+
+       rp->nevents++;
+       list_add_tail(&ep->e_link, &rp->e_list);
+       wake_up(&rp->wait);
+}
+
 /*
  * Fetch next event from the circular buffer.
  */
@@ -235,6 +261,7 @@ static int mon_text_open(struct inode *inode, struct file *file)
        rp->r.m_bus = mbus;
        rp->r.r_data = rp;
        rp->r.rnf_submit = mon_text_submit;
+       rp->r.rnf_error = mon_text_error;
        rp->r.rnf_complete = mon_text_complete;
 
        snprintf(rp->slab_name, SLAB_NAME_SZ, "mon%dt_%lx", ubus->busnum,