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| author | Thomas Abraham <t-abraham@ti.com> | 2009-01-04 12:15:35 +0530 |
|---|---|---|
| committer | Remy Bohmer <linux@bohmer.net> | 2009-01-28 19:57:28 +0100 |
| commit | 1eb734fed3b79a5e6106dad16e88041894fdab30 (patch) | |
| tree | 2b5a96068c74511143e92839ed798ce92fb3cee6 | |
| parent | 366523c26b6320af171459b19e6e0e9e3baa83ca (diff) | |
| download | u-boot-imx-1eb734fed3b79a5e6106dad16e88041894fdab30.zip u-boot-imx-1eb734fed3b79a5e6106dad16e88041894fdab30.tar.gz u-boot-imx-1eb734fed3b79a5e6106dad16e88041894fdab30.tar.bz2 | |
usb : usb_kbd : Populating 'priv' member of USB keyboard device_t structure
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 <t-abraham@ti.com>
Signed-off-by: Remy Bohmer <linux@bohmer.net>
| -rw-r--r-- | 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..e0d006c 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 */ |