| Message ID | 1372804951-7135-1-git-send-email-pdewacht@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Jiri Kosina |
| Headers | show |
[ Bernhard added to CC ] On Wed, 3 Jul 2013, Peter De Wachter wrote: > IBM Scrollpoint have a trackpoint-like gizmo instead of a scroll wheel, > which allows for two-dimensional scrolling. This driver provides an > input mapping to make that work. > > The scrollpoint is also much more sensitive than a typical mouse wheel. > X can use this to provide smooth scrolling, but the kernel doesn't seem > to have a way to communicate this fact. As a result this mouse simply > scrolls way too fast. For now I've created an xorg patch to provide a > manual setting (fdo #48118). > > Signed-off-by: Peter De Wachter <pdewacht@gmail.com> Hi, thanks for the driver. I'd like to ask you to put a few more effort into this, unifying this a little bit more with the existing driver for Lenovo devices we aready have in the tree -- hid-lenovo-tpkbd. As most of the drivers are divided on a per-vendor basis anyway, what I'd probably like to see the most would be: - drop HID_LENOVO_TPKBD (*) - create HID_LENOVO - rename your driver to hid-lenovo-scrollpoint - build both hid-lenovo-tpkbd and hid-lenovo-scrollpoint when HID_LENOVO is set (*) or keep it for compatibility reasons, but make it just an alias for CONFIG_HID_LENOVO. Sounds feasible? > --- > drivers/hid/Kconfig | 8 ++++++ > drivers/hid/Makefile | 1 + > drivers/hid/hid-core.c | 7 +++++ > drivers/hid/hid-ids.h | 7 +++++ > drivers/hid/hid-scrollpoint.c | 67 +++++++++++++++++++++++++++++++++++++++++++ > 5 files changed, 90 insertions(+) > create mode 100644 drivers/hid/hid-scrollpoint.c > > diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig > index fb52f3f..fdc49ca 100644 > --- a/drivers/hid/Kconfig > +++ b/drivers/hid/Kconfig > @@ -593,6 +593,14 @@ config HID_SAMSUNG > ---help--- > Support for Samsung InfraRed remote control or keyboards. > > +config HID_SCROLLPOINT > + tristate "IBM/Lenovo ScrollPoint mice" > + depends on HID > + ---help--- > + Support for IBM/Lenovo ScrollPoint mice. > + Say Y here if you have a ScrollPoint mouse and want horizontal > + scrolling to work. > + > config HID_SONY > tristate "Sony PS3 controller" > depends on USB_HID > diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile > index 2065694..4a4c279 100644 > --- a/drivers/hid/Makefile > +++ b/drivers/hid/Makefile > @@ -99,6 +99,7 @@ obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \ > hid-roccat-lua.o hid-roccat-pyra.o hid-roccat-savu.o > obj-$(CONFIG_HID_SAITEK) += hid-saitek.o > obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o > +obj-$(CONFIG_HID_SCROLLPOINT) += hid-scrollpoint.o > obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o > obj-$(CONFIG_HID_SONY) += hid-sony.o > obj-$(CONFIG_HID_SPEEDLINK) += hid-speedlink.o > diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c > index 264f550..003f419 100644 > --- a/drivers/hid/hid-core.c > +++ b/drivers/hid/hid-core.c > @@ -1584,6 +1584,13 @@ static const struct hid_device_id hid_have_special_driver[] = { > { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, > { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, > { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, > +#if IS_ENABLED(CONFIG_HID_SCROLLPOINT) > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, > +#endif > { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, > { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, > { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, > diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h > index 38535c9..f813fab 100644 > --- a/drivers/hid/hid-ids.h > +++ b/drivers/hid/hid-ids.h > @@ -441,6 +441,13 @@ > #define USB_VENDOR_ID_HOLTEK_ALT 0x04d9 > #define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD 0xa055 > > +#define USB_VENDOR_ID_IBM 0x04b3 > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_III 0x3100 > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_PRO 0x3103 > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL 0x3105 > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL 0x3108 > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO 0x3109 > + > #define USB_VENDOR_ID_IMATION 0x0718 > #define USB_DEVICE_ID_DISC_STAKKA 0xd000 > > diff --git a/drivers/hid/hid-scrollpoint.c b/drivers/hid/hid-scrollpoint.c > new file mode 100644 > index 0000000..48e7696 > --- /dev/null > +++ b/drivers/hid/hid-scrollpoint.c > @@ -0,0 +1,67 @@ > +/* > + * HID driver for IBM/Lenovo ScrollPoint mice > + * > + * Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com> > + */ > + > +/* > + * 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> > + > +#include "hid-ids.h" > + > +static int scrollpoint_input_mapping(struct hid_device *hdev, > + struct hid_input *hi, struct hid_field *field, > + struct hid_usage *usage, unsigned long **bit, int *max) > +{ > + if (usage->hid == HID_GD_Z) { > + hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL); > + return 1; > + } > + return 0; > +} > + > +static const struct hid_device_id scrollpoint_devices[] = { > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > + USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > + USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > + USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > + USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > + USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, > + { } > +}; > +MODULE_DEVICE_TABLE(hid, scrollpoint_devices); > + > +static struct hid_driver scrollpoint_driver = { > + .name = "scrollpoint", > + .id_table = scrollpoint_devices, > + .input_mapping = scrollpoint_input_mapping > +}; > + > +static int __init scrollpoint_init(void) > +{ > + return hid_register_driver(&scrollpoint_driver); > +} > + > +static void __exit scrollpoint_exit(void) > +{ > + hid_unregister_driver(&scrollpoint_driver); > +} > + > +module_init(scrollpoint_init); > +module_exit(scrollpoint_exit); > + > +MODULE_AUTHOR("Peter De Wachter"); > +MODULE_DESCRIPTION("IBM/Lenovo ScrollPoint mouse driver"); > +MODULE_LICENSE("GPL"); > -- > 1.8.3.2 >
On Mon, 5 Aug 2013, Jiri Kosina wrote: > > IBM Scrollpoint have a trackpoint-like gizmo instead of a scroll wheel, > > which allows for two-dimensional scrolling. This driver provides an > > input mapping to make that work. > > > > The scrollpoint is also much more sensitive than a typical mouse wheel. > > X can use this to provide smooth scrolling, but the kernel doesn't seem > > to have a way to communicate this fact. As a result this mouse simply > > scrolls way too fast. For now I've created an xorg patch to provide a > > manual setting (fdo #48118). > > > > Signed-off-by: Peter De Wachter <pdewacht@gmail.com> > > Hi, > > thanks for the driver. > > I'd like to ask you to put a few more effort into this, unifying this a > little bit more with the existing driver for Lenovo devices we aready have > in the tree -- hid-lenovo-tpkbd. > > As most of the drivers are divided on a per-vendor basis anyway, what I'd > probably like to see the most would be: > > - drop HID_LENOVO_TPKBD (*) > - create HID_LENOVO > - rename your driver to hid-lenovo-scrollpoint > - build both hid-lenovo-tpkbd and hid-lenovo-scrollpoint when HID_LENOVO > is set > > (*) or keep it for compatibility reasons, but make it just an alias for > CONFIG_HID_LENOVO. > > Sounds feasible? Peter, what are your plans with this, please? > > > --- > > drivers/hid/Kconfig | 8 ++++++ > > drivers/hid/Makefile | 1 + > > drivers/hid/hid-core.c | 7 +++++ > > drivers/hid/hid-ids.h | 7 +++++ > > drivers/hid/hid-scrollpoint.c | 67 +++++++++++++++++++++++++++++++++++++++++++ > > 5 files changed, 90 insertions(+) > > create mode 100644 drivers/hid/hid-scrollpoint.c > > > > diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig > > index fb52f3f..fdc49ca 100644 > > --- a/drivers/hid/Kconfig > > +++ b/drivers/hid/Kconfig > > @@ -593,6 +593,14 @@ config HID_SAMSUNG > > ---help--- > > Support for Samsung InfraRed remote control or keyboards. > > > > +config HID_SCROLLPOINT > > + tristate "IBM/Lenovo ScrollPoint mice" > > + depends on HID > > + ---help--- > > + Support for IBM/Lenovo ScrollPoint mice. > > + Say Y here if you have a ScrollPoint mouse and want horizontal > > + scrolling to work. > > + > > config HID_SONY > > tristate "Sony PS3 controller" > > depends on USB_HID > > diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile > > index 2065694..4a4c279 100644 > > --- a/drivers/hid/Makefile > > +++ b/drivers/hid/Makefile > > @@ -99,6 +99,7 @@ obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \ > > hid-roccat-lua.o hid-roccat-pyra.o hid-roccat-savu.o > > obj-$(CONFIG_HID_SAITEK) += hid-saitek.o > > obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o > > +obj-$(CONFIG_HID_SCROLLPOINT) += hid-scrollpoint.o > > obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o > > obj-$(CONFIG_HID_SONY) += hid-sony.o > > obj-$(CONFIG_HID_SPEEDLINK) += hid-speedlink.o > > diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c > > index 264f550..003f419 100644 > > --- a/drivers/hid/hid-core.c > > +++ b/drivers/hid/hid-core.c > > @@ -1584,6 +1584,13 @@ static const struct hid_device_id hid_have_special_driver[] = { > > { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, > > { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, > > { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, > > +#if IS_ENABLED(CONFIG_HID_SCROLLPOINT) > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, > > +#endif > > { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, > > { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, > > { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, > > diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h > > index 38535c9..f813fab 100644 > > --- a/drivers/hid/hid-ids.h > > +++ b/drivers/hid/hid-ids.h > > @@ -441,6 +441,13 @@ > > #define USB_VENDOR_ID_HOLTEK_ALT 0x04d9 > > #define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD 0xa055 > > > > +#define USB_VENDOR_ID_IBM 0x04b3 > > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_III 0x3100 > > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_PRO 0x3103 > > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL 0x3105 > > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL 0x3108 > > +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO 0x3109 > > + > > #define USB_VENDOR_ID_IMATION 0x0718 > > #define USB_DEVICE_ID_DISC_STAKKA 0xd000 > > > > diff --git a/drivers/hid/hid-scrollpoint.c b/drivers/hid/hid-scrollpoint.c > > new file mode 100644 > > index 0000000..48e7696 > > --- /dev/null > > +++ b/drivers/hid/hid-scrollpoint.c > > @@ -0,0 +1,67 @@ > > +/* > > + * HID driver for IBM/Lenovo ScrollPoint mice > > + * > > + * Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com> > > + */ > > + > > +/* > > + * 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> > > + > > +#include "hid-ids.h" > > + > > +static int scrollpoint_input_mapping(struct hid_device *hdev, > > + struct hid_input *hi, struct hid_field *field, > > + struct hid_usage *usage, unsigned long **bit, int *max) > > +{ > > + if (usage->hid == HID_GD_Z) { > > + hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL); > > + return 1; > > + } > > + return 0; > > +} > > + > > +static const struct hid_device_id scrollpoint_devices[] = { > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > > + USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > > + USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > > + USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > > + USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, > > + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, > > + USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, > > + { } > > +}; > > +MODULE_DEVICE_TABLE(hid, scrollpoint_devices); > > + > > +static struct hid_driver scrollpoint_driver = { > > + .name = "scrollpoint", > > + .id_table = scrollpoint_devices, > > + .input_mapping = scrollpoint_input_mapping > > +}; > > + > > +static int __init scrollpoint_init(void) > > +{ > > + return hid_register_driver(&scrollpoint_driver); > > +} > > + > > +static void __exit scrollpoint_exit(void) > > +{ > > + hid_unregister_driver(&scrollpoint_driver); > > +} > > + > > +module_init(scrollpoint_init); > > +module_exit(scrollpoint_exit); > > + > > +MODULE_AUTHOR("Peter De Wachter"); > > +MODULE_DESCRIPTION("IBM/Lenovo ScrollPoint mouse driver"); > > +MODULE_LICENSE("GPL"); > > -- > > 1.8.3.2 > > > > -- > Jiri Kosina > SUSE Labs >
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index fb52f3f..fdc49ca 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -593,6 +593,14 @@ config HID_SAMSUNG ---help--- Support for Samsung InfraRed remote control or keyboards. +config HID_SCROLLPOINT + tristate "IBM/Lenovo ScrollPoint mice" + depends on HID + ---help--- + Support for IBM/Lenovo ScrollPoint mice. + Say Y here if you have a ScrollPoint mouse and want horizontal + scrolling to work. + config HID_SONY tristate "Sony PS3 controller" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 2065694..4a4c279 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -99,6 +99,7 @@ obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \ hid-roccat-lua.o hid-roccat-pyra.o hid-roccat-savu.o obj-$(CONFIG_HID_SAITEK) += hid-saitek.o obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o +obj-$(CONFIG_HID_SCROLLPOINT) += hid-scrollpoint.o obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o obj-$(CONFIG_HID_SONY) += hid-sony.o obj-$(CONFIG_HID_SPEEDLINK) += hid-speedlink.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 264f550..003f419 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1584,6 +1584,13 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, +#if IS_ENABLED(CONFIG_HID_SCROLLPOINT) + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, +#endif { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 38535c9..f813fab 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -441,6 +441,13 @@ #define USB_VENDOR_ID_HOLTEK_ALT 0x04d9 #define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD 0xa055 +#define USB_VENDOR_ID_IBM 0x04b3 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_III 0x3100 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_PRO 0x3103 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL 0x3105 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL 0x3108 +#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO 0x3109 + #define USB_VENDOR_ID_IMATION 0x0718 #define USB_DEVICE_ID_DISC_STAKKA 0xd000 diff --git a/drivers/hid/hid-scrollpoint.c b/drivers/hid/hid-scrollpoint.c new file mode 100644 index 0000000..48e7696 --- /dev/null +++ b/drivers/hid/hid-scrollpoint.c @@ -0,0 +1,67 @@ +/* + * HID driver for IBM/Lenovo ScrollPoint mice + * + * Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com> + */ + +/* + * 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> + +#include "hid-ids.h" + +static int scrollpoint_input_mapping(struct hid_device *hdev, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + if (usage->hid == HID_GD_Z) { + hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL); + return 1; + } + return 0; +} + +static const struct hid_device_id scrollpoint_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, + USB_DEVICE_ID_IBM_SCROLLPOINT_III) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, + USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, + USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, + USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) }, + { HID_USB_DEVICE(USB_VENDOR_ID_IBM, + USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) }, + { } +}; +MODULE_DEVICE_TABLE(hid, scrollpoint_devices); + +static struct hid_driver scrollpoint_driver = { + .name = "scrollpoint", + .id_table = scrollpoint_devices, + .input_mapping = scrollpoint_input_mapping +}; + +static int __init scrollpoint_init(void) +{ + return hid_register_driver(&scrollpoint_driver); +} + +static void __exit scrollpoint_exit(void) +{ + hid_unregister_driver(&scrollpoint_driver); +} + +module_init(scrollpoint_init); +module_exit(scrollpoint_exit); + +MODULE_AUTHOR("Peter De Wachter"); +MODULE_DESCRIPTION("IBM/Lenovo ScrollPoint mouse driver"); +MODULE_LICENSE("GPL");
IBM Scrollpoint have a trackpoint-like gizmo instead of a scroll wheel, which allows for two-dimensional scrolling. This driver provides an input mapping to make that work. The scrollpoint is also much more sensitive than a typical mouse wheel. X can use this to provide smooth scrolling, but the kernel doesn't seem to have a way to communicate this fact. As a result this mouse simply scrolls way too fast. For now I've created an xorg patch to provide a manual setting (fdo #48118). Signed-off-by: Peter De Wachter <pdewacht@gmail.com> --- drivers/hid/Kconfig | 8 ++++++ drivers/hid/Makefile | 1 + drivers/hid/hid-core.c | 7 +++++ drivers/hid/hid-ids.h | 7 +++++ drivers/hid/hid-scrollpoint.c | 67 +++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 90 insertions(+) create mode 100644 drivers/hid/hid-scrollpoint.c