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path: root/drivers/usb/input/hid.h
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Diffstat (limited to 'drivers/usb/input/hid.h')
-rw-r--r--drivers/usb/input/hid.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/input/hid.h b/drivers/usb/input/hid.h
index ca3e170ce0b..d76bbc81f6a 100644
--- a/drivers/usb/input/hid.h
+++ b/drivers/usb/input/hid.h
@@ -351,7 +351,8 @@ struct hid_report_enum {
#define HID_REPORT_TYPES 3
-#define HID_BUFFER_SIZE 64 /* use 64 for compatibility with all possible packetlen */
+#define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */
+#define HID_MAX_BUFFER_SIZE 4096 /* 4kb */
#define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */
#define HID_OUTPUT_FIFO_SIZE 64
@@ -389,6 +390,8 @@ struct hid_device { /* device report descriptor */
unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
+ unsigned int bufsize; /* URB buffer size */
+
struct urb *urbin; /* Input URB */
char *inbuf; /* Input buffer */
dma_addr_t inbuf_dma; /* Input buffer dma */