This enables the power and equals keys on the Macally ikey keyboard.
Based on the Cougar gaming keyboard HID driver, which uses the same
vendor ID.
Signed-off-by: Alex Henrie <alexhenrie24@xxxxxxxxx>
---
drivers/hid/Kconfig | 10 +++++++++
drivers/hid/Makefile | 1 +
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-macally.c | 45 +++++++++++++++++++++++++++++++++++++++
4 files changed, 57 insertions(+)
create mode 100644 drivers/hid/hid-macally.c
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 6ca8d322b487..aef4a2a690e1 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -230,6 +230,16 @@ config HID_COUGAR
Supported devices:
- Cougar 500k Gaming Keyboard
+config HID_MACALLY
+ tristate "Macally devices"
+ depends on HID
+ help
+ Support for Macally devices that are not fully compliant with the
+ HID standard.
+
+ supported devices:
+ - Macally ikey keyboard
+
config HID_PRODIKEYS
tristate "Prodikeys PC-MIDI Keyboard support"
depends on HID && SND
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 170163b41303..44b9caea46a7 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -65,6 +65,7 @@ obj-$(CONFIG_HID_LENOVO) += hid-lenovo.o
obj-$(CONFIG_HID_LOGITECH) += hid-logitech.o
obj-$(CONFIG_HID_LOGITECH_DJ) += hid-logitech-dj.o
obj-$(CONFIG_HID_LOGITECH_HIDPP) += hid-logitech-hidpp.o
+obj-$(CONFIG_HID_MACALLY) += hid-macally.o
obj-$(CONFIG_HID_MAGICMOUSE) += hid-magicmouse.o
obj-$(CONFIG_HID_MALTRON) += hid-maltron.o
obj-$(CONFIG_HID_MAYFLASH) += hid-mf.o
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index b6d93f4ad037..aacc7534b076 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1034,6 +1034,7 @@
#define USB_DEVICE_ID_SINO_LITE_CONTROLLER 0x3008
#define USB_VENDOR_ID_SOLID_YEAR 0x060b
+#define USB_DEVICE_ID_MACALLY_IKEY_KEYBOARD 0x0001
#define USB_DEVICE_ID_COUGAR_500K_GAMING_KEYBOARD 0x500a
#define USB_DEVICE_ID_COUGAR_700K_GAMING_KEYBOARD 0x700a
diff --git a/drivers/hid/hid-macally.c b/drivers/hid/hid-macally.c
new file mode 100644
index 000000000000..9a4fc7dffb14
--- /dev/null
+++ b/drivers/hid/hid-macally.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * HID driver for quirky Macally devices
+ *
+ * Copyright (c) 2019 Alex Henrie <alexhenrie24@xxxxxxxxx>
+ */
+
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+MODULE_AUTHOR("Alex Henrie <alexhenrie24@xxxxxxxxx>");
+MODULE_DESCRIPTION("Macally devices");
+MODULE_LICENSE("GPL");
+
+/*
+ * The Macally ikey keyboard says that its logical and usage maximums are both
+ * 101, but the power key is 102 and the equals key is 103
+ */
+static __u8 *macally_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
+{
+ if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) {
+ hid_info(hdev,
+ "fixing up Macally ikey keyboard report descriptor\n");
+ rdesc[53] = rdesc[59] = 0x67;
+ }
+ return rdesc;
+}
+
+static struct hid_device_id macally_id_table[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_SOLID_YEAR,
+ USB_DEVICE_ID_MACALLY_IKEY_KEYBOARD) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, macally_id_table);
+
+static struct hid_driver macally_driver = {
+ .name = "macally",
+ .id_table = macally_id_table,
+ .report_fixup = macally_report_fixup,
+};
+
+module_hid_driver(macally_driver);
--
2.21.0
