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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /drivers/hid/hid-roccat-common.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'drivers/hid/hid-roccat-common.c')
-rw-r--r--drivers/hid/hid-roccat-common.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
new file mode 100644
index 00000000..a6d93992
--- /dev/null
+++ b/drivers/hid/hid-roccat-common.c
@@ -0,0 +1,69 @@
+/*
+ * Roccat common functions for device specific drivers
+ *
+ * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/hid.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include "hid-roccat-common.h"
+
+static inline uint16_t roccat_common_feature_report(uint8_t report_id)
+{
+ return 0x300 | report_id;
+}
+
+int roccat_common_receive(struct usb_device *usb_dev, uint report_id,
+ void *data, uint size)
+{
+ char *buf;
+ int len;
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+ HID_REQ_GET_REPORT,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+ roccat_common_feature_report(report_id),
+ 0, buf, size, USB_CTRL_SET_TIMEOUT);
+
+ memcpy(data, buf, size);
+ kfree(buf);
+ return ((len < 0) ? len : ((len != size) ? -EIO : 0));
+}
+EXPORT_SYMBOL_GPL(roccat_common_receive);
+
+int roccat_common_send(struct usb_device *usb_dev, uint report_id,
+ void const *data, uint size)
+{
+ char *buf;
+ int len;
+
+ buf = kmemdup(data, size, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
+ len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
+ HID_REQ_SET_REPORT,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+ roccat_common_feature_report(report_id),
+ 0, buf, size, USB_CTRL_SET_TIMEOUT);
+
+ kfree(buf);
+ return ((len < 0) ? len : ((len != size) ? -EIO : 0));
+}
+EXPORT_SYMBOL_GPL(roccat_common_send);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat common driver");
+MODULE_LICENSE("GPL v2");