fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / usb / class / cdc-acm.h

diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index fd2aacc..1bcaea3 100644 (file)
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -56,11 +56,11 @@
  * in line disciplines. They ask for empty space amount, receive our URB size,
  * and proceed to issue several 1-character writes, assuming they will fit.
  * The very first write takes a complete URB. Fortunately, this only happens
- * when processing onlcr, so we only need 2 buffers.
+ * when processing onlcr, so we only need 2 buffers. These values must be
+ * powers of 2.
  */
-#define ACM_NWB  2
-#define ACM_NRU  16
-#define ACM_NRB  16
+#define ACM_NW  2
+#define ACM_NR  16
 
 struct acm_wb {
        unsigned char *buf;
@@ -91,9 +91,10 @@ struct acm {
        struct urb *ctrlurb, *writeurb;                 /* urbs */
        u8 *ctrl_buffer;                                /* buffers of urbs */
        dma_addr_t ctrl_dma;                            /* dma handles of buffers */
-       struct acm_wb wb[ACM_NWB];
-       struct acm_ru ru[ACM_NRU];
-       struct acm_rb rb[ACM_NRB];
+       struct acm_wb wb[ACM_NW];
+       struct acm_ru ru[ACM_NR];
+       struct acm_rb rb[ACM_NR];
+       int rx_buflimit;
        int rx_endpoint;
        spinlock_t read_lock;
        struct list_head spare_read_urbs;
@@ -122,3 +123,4 @@ struct acm {
 
 /* constants describing various quirks and errors */
 #define NO_UNION_NORMAL                        1
+#define SINGLE_RX_URB                  2