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Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Jiri Slaby
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Oct 14, 2008
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * HID driver for some samsung "special" devices | ||
| * | ||
| * Copyright (c) 1999 Andreas Gal | ||
| * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | ||
| * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | ||
| * Copyright (c) 2006-2007 Jiri Kosina | ||
| * Copyright (c) 2007 Paul Walmsley | ||
| * Copyright (c) 2008 Jiri Slaby | ||
| */ | ||
|
|
||
| /* | ||
| * 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/device.h> | ||
| #include <linux/hid.h> | ||
| #include <linux/module.h> | ||
|
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| #include "hid-ids.h" | ||
|
|
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| /* | ||
| * Samsung IrDA remote controller (reports as Cypress USB Mouse). | ||
| * | ||
| * Vendor specific report #4 has a size of 48 bit, | ||
| * and therefore is not accepted when inspecting the descriptors. | ||
| * As a workaround we reinterpret the report as: | ||
| * Variable type, count 6, size 8 bit, log. maximum 255 | ||
| * The burden to reconstruct the data is moved into user space. | ||
| */ | ||
| static void samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc, | ||
| unsigned int rsize) | ||
| { | ||
| if (rsize >= 182 && rdesc[175] == 0x25 && rdesc[176] == 0x40 && | ||
| rdesc[177] == 0x75 && rdesc[178] == 0x30 && | ||
| rdesc[179] == 0x95 && rdesc[180] == 0x01 && | ||
| rdesc[182] == 0x40) { | ||
| dev_info(&hdev->dev, "fixing up Samsung IrDA report " | ||
| "descriptor\n"); | ||
| rdesc[176] = 0xff; | ||
| rdesc[178] = 0x08; | ||
| rdesc[180] = 0x06; | ||
| rdesc[182] = 0x42; | ||
| } | ||
| } | ||
|
|
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| static int samsung_probe(struct hid_device *hdev, | ||
| const struct hid_device_id *id) | ||
| { | ||
| int ret; | ||
|
|
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| hdev->quirks |= HID_QUIRK_HIDDEV | HID_QUIRK_IGNORE_HIDINPUT; | ||
|
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| ret = hid_parse(hdev); | ||
| if (ret) { | ||
| dev_err(&hdev->dev, "parse failed\n"); | ||
| goto err_free; | ||
| } | ||
|
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| ret = hid_hw_start(hdev); | ||
| if (ret) { | ||
| dev_err(&hdev->dev, "hw start failed\n"); | ||
| goto err_free; | ||
| } | ||
|
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| return 0; | ||
| err_free: | ||
| return ret; | ||
| } | ||
|
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| static const struct hid_device_id samsung_devices[] = { | ||
| { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, | ||
| { } | ||
| }; | ||
| MODULE_DEVICE_TABLE(hid, samsung_devices); | ||
|
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| static struct hid_driver samsung_driver = { | ||
| .name = "samsung", | ||
| .id_table = samsung_devices, | ||
| .report_fixup = samsung_report_fixup, | ||
| .probe = samsung_probe, | ||
| }; | ||
|
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| static int samsung_init(void) | ||
| { | ||
| return hid_register_driver(&samsung_driver); | ||
| } | ||
|
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| static void samsung_exit(void) | ||
| { | ||
| hid_unregister_driver(&samsung_driver); | ||
| } | ||
|
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| module_init(samsung_init); | ||
| module_exit(samsung_exit); | ||
| MODULE_LICENSE("GPL"); | ||
|
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| HID_COMPAT_LOAD_DRIVER(samsung); |
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