From 854561b019285acf6e98ca9288fef0d034476fec Mon Sep 17 00:00:00 2001
From: Vojtech Pavlik <vojtech@suse.cz>
Date: Sun, 29 May 2005 02:28:00 -0500
Subject: [PATCH] Input: Make hid-core issue a SET_IDLE request before
GET_REPORT, like Windows does. This should make life easier for
devices that were tested with Windows only.
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
drivers/usb/input/hid-core.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 869ff73690aceb..cd8d221395e26b 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -1233,6 +1233,13 @@ int hid_wait_io(struct hid_device *hid)
return 0;
}
+static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle)
+{
+ usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report,
+ ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
unsigned char type, void *buf, int size)
{
@@ -1301,10 +1308,6 @@ void hid_init_reports(struct hid_device *hid)
if (err)
warn("timeout initializing reports\n");
-
- usb_control_msg(hid->dev, usb_sndctrlpipe(hid->dev, 0),
- HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0,
- hid->ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
#define USB_VENDOR_ID_WACOM 0x056a
@@ -1572,6 +1575,8 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
return NULL;
}
+ hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
+
if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
dbg("reading report descriptor failed");
kfree(rdesc);
--
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