This patch populates the 'priv' field of the USB keyboard device_t
structure. The 'priv' field is populated with the address of the
'struct usb_device' structure that represents the USB device.
The 'priv' field can then be used in the 'usb_event_poll' function to
determine the USB device that requires to be polled. An
example of its usage in 'usb_event_poll' function is as below.
device_t *dev;
struct usb_device *usb_kbd_dev;
<snip>
dev = device_get_by_name("usbkbd");
usb_kbd_dev = (struct usb_device *)dev->priv;
iface = &usb_kbd_dev->config.if_desc[0];
Signed-off-by: Thomas Abraham <[email protected]>
---
common/usb_kbd.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 89e6ee7..fe1e789 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -183,6 +183,7 @@ int drv_usb_kbd_init(void)
usb_kbd_dev.puts = NULL;
usb_kbd_dev.getc = usb_kbd_getc;
usb_kbd_dev.tstc = usb_kbd_testc;
+ usb_kbd_dev.priv = (void *)dev;
error = device_register (&usb_kbd_dev);
if(error==0) {
/* check if this is the standard input
device */
--
1.5.6
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