diff options
Diffstat (limited to 'HID-chicony-Add-support-for-Acer-Aspire-Switch-12.patch')
| -rw-r--r-- | HID-chicony-Add-support-for-Acer-Aspire-Switch-12.patch | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/HID-chicony-Add-support-for-Acer-Aspire-Switch-12.patch b/HID-chicony-Add-support-for-Acer-Aspire-Switch-12.patch new file mode 100644 index 000000000..2baf72e4c --- /dev/null +++ b/HID-chicony-Add-support-for-Acer-Aspire-Switch-12.patch @@ -0,0 +1,103 @@ +From 98f07385212073536f303c07ece455acdd4d267f Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=BE=D0=BB=D0=B0=D0=B9=20=D0=9A=D1=83?= + =?UTF-8?q?=D0=B4=D1=80=D1=8F=D0=B2=D1=86=D0=B5=D0=B2?= + <nkudriavtsev@gmail.com> +Date: Tue, 21 Jul 2015 13:31:52 +0300 +Subject: [PATCH] HID: chicony: Add support for Acer Aspire Switch 12 + +Acer Aspire Switch 12 keyboard Chicony's controller reports too big usage +index on the 1st interface. The patch fixes the report. The work based on +solution from drivers/hid/hid-holtek-mouse.c + +Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=101721 + +Signed-off-by: Nicholas Kudriavtsev <nkudriavtsev@gmail.com> +Signed-off-by: Jiri Kosina <jkosina@suse.com> +--- + drivers/hid/hid-chicony.c | 26 ++++++++++++++++++++++++++ + drivers/hid/hid-core.c | 1 + + drivers/hid/hid-ids.h | 1 + + 3 files changed, 28 insertions(+) + +diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c +index b613d5a79684..bc3cec199fee 100644 +--- a/drivers/hid/hid-chicony.c ++++ b/drivers/hid/hid-chicony.c +@@ -20,6 +20,7 @@ + #include <linux/input.h> + #include <linux/hid.h> + #include <linux/module.h> ++#include <linux/usb.h> + + #include "hid-ids.h" + +@@ -57,10 +58,34 @@ static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, + return 1; + } + ++static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc, ++ unsigned int *rsize) ++{ ++ struct usb_interface *intf = to_usb_interface(hdev->dev.parent); ++ ++ if (intf->cur_altsetting->desc.bInterfaceNumber == 1) { ++ /* Change usage maximum and logical maximum from 0x7fff to ++ * 0x2fff, so they don't exceed HID_MAX_USAGES */ ++ switch (hdev->product) { ++ case USB_DEVICE_ID_CHICONY_ACER_SWITCH12: ++ if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f ++ && rdesc[69] == 0xff && rdesc[70] == 0x7f) { ++ hid_info(hdev, "Fixing up report descriptor\n"); ++ rdesc[65] = rdesc[70] = 0x2f; ++ } ++ break; ++ } ++ ++ } ++ return rdesc; ++} ++ ++ + static const struct hid_device_id ch_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) }, ++ { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) }, + { } + }; + MODULE_DEVICE_TABLE(hid, ch_devices); +@@ -68,6 +93,7 @@ MODULE_DEVICE_TABLE(hid, ch_devices); + static struct hid_driver ch_driver = { + .name = "chicony", + .id_table = ch_devices, ++ .report_fixup = ch_switch12_report_fixup, + .input_mapping = ch_input_mapping, + }; + module_hid_driver(ch_driver); +diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c +index e6fce23b121a..f90ca6574221 100644 +--- a/drivers/hid/hid-core.c ++++ b/drivers/hid/hid-core.c +@@ -1807,6 +1807,7 @@ static const struct hid_device_id hid_have_special_driver[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) }, ++ { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, +diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h +index b3b225b75d0a..79210ca8eff1 100644 +--- a/drivers/hid/hid-ids.h ++++ b/drivers/hid/hid-ids.h +@@ -233,6 +233,7 @@ + #define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE 0x1053 + #define USB_DEVICE_ID_CHICONY_WIRELESS2 0x1123 + #define USB_DEVICE_ID_CHICONY_AK1D 0x1125 ++#define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421 + + #define USB_VENDOR_ID_CHUNGHWAT 0x2247 + #define USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH 0x0001 +-- +2.4.3 + |