The Microsoft ImPS/2 mouse protocol being bidirectionnal (sic)
one may have to write in /dev/input/mice; and that works better
if select() does not hang.
Signed-off-by: Julien Moutinho <julm+linux@savines.alpes.fr.eu.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This patch adds documentation for the ABS_MT_SLOT event and gives
examples of how to use the event slot protocol.
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
With the rapidly increasing number of intelligent multi-contact and
multi-user devices, the need to send digested, filtered information
from a set of different sources within the same device is imminent.
This patch adds the concept of slots to the MT protocol. The slots
enumerate a set of identified sources, such that all MT events
can be passed independently and selectively per identified source.
The protocol works like this: Instead of sending a SYN_MT_REPORT
event immediately after the contact data, one sends an ABS_MT_SLOT
event immediately before the contact data. The input core will only
emit events for slots with modified MT events. It is assumed that
the same slot is used for the duration of an initiated contact.
Acked-by: Ping Cheng <pingc@wacom.com>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Acked-by: Rafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This implements reset_resume() by splitting init into allocations
of private data structures and device initializations. Device
initializations are repeated upon reset_resume.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Tested-by: Petr Štetiar <ynezz@true.cz>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This implement USB autosuspend while the device is opened for
devices that do remote wakeup with a fallback to open/close for
those devices that don't. Devices that require the host to
constantly poll them are never autosuspended.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Tested-by: Petr Štetiar <ynezz@true.cz>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This implements basic support for suspend & resume.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Tested-by: Petr Štetiar <ynezz@true.cz>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The chip's full name is AT42QT602240 or ATMXT224. This is a capacitive
touchscreen supporting 10-contact multitouch and using I2C interface.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This patch adds a simple driver which allows to use pwm based beepers (for
example piezo elements) as a pcspkr-like device.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Dance pads don't have any axes/sticks, only buttons for directions. For
example buttons like left+right will get triggered at once, an axis
can't handle this anyway. So this patch adds a module parameter named
"sticks_to_null" for unknown devices. A known dance pad makes use of
it by changing to a new mapping-option named DANCEPAD_MAP_CONFIG. Other
tested devices may follow by adding this mapping-option too.
Some buttons of xpad-devices are addressing mouse-buttons instead of
gamepad-buttons. This gets fixed too.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
To improve readability, this patch fixes mixing acpi_status
and int for return value.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The owner field provides the link between drivers and modules in sysfs.
After setting the owner field, we can see which module provides which
driver and vice versa by looking at /sys/bus/acpi/drivers/Atlas ACPI/module
and /sys/module/atlas_btns/drivers/acpi:Atlas ACPI
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Power button is not hot-pluggable so we can save some memory by
using __init.
Signed-off-by: Markus Lehtonen <markus.lehtonen@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
As the kernel has no way to know whether a key was released
while the system was asleep, keys need to be reported released
as the system is resumed, lest autorepeat set in.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
ADS7845 is a controller for 5-wire touch screens and somewhat
different from 7846. It requires three serial communications to
accomplish one complete conversion. Unlike 7846 it doesn't allow
Z1-/Z2- position measurement.
The patch extends the ads7846 driver to also support ads7845.
The packet struct is extended to contain needed command and
conversion buffers. ads7846_rx() and ads7846_rx_val() now
differentiate between 7845 and 7846 case. ads7846_probe() is
modified to setup ads7845 specific command and conversion
messages and to switch ads7845 into power-down mode, since
this is needed to be prepared to respond to pendown interrupts.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Suspending and resuming the device should be separate from enabling
and disabling it through sysfs attribute and thus should not alter
ac->disabled flag.
[michael.hennerich@analog.com: various fixups]
Tested-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Some input events users such as Android require BTN_TOUCH events.
Implement EV_KEY/BTN_TOUCH and make sure that the release event
is not erroneous scheduled without a preceding valid touch.
Avoid duplicated BTN_TOUCH events, even though input core filters
them.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The ad7879 driver is using the old bus method of only supporting one
at a time (I2C or SPI). So refactor it like the other input drivers
that support multiple busses simultaneously.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
We reuse the "i" variable later on so if we goto fail3 or fail4
then "i" will be set to the wrong thing and cause a crash.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
gpiolib now has debounce support added in .35, so let's make use of it.
This allows to use hardware GPIO debouncing on some platforms like OMAP.
In case gpiolib debounce setup fails for some GPIO, the driver will fall
back to timer based debouncing, which is what it used before.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The device is handled by usbtouchscreen driver.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This patch adds support for the ET&T TC4UM 4-wire USB touchscreen
controller and tries to reuse the bits for TC5UH controller in kernel
already. Data interface is same.
Tested-by: Roger Pueyo Centelles <rogerpueyo@rogerpueyo.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
On some platforms, for example with GPIO interrupts on mpc5121,
it is not possible to configure falling edge interrupts.
Specifying irq trigger type in platform data structure
allows using ads7846 driver on such platforms.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
select_keymap() calls copy_keymap() to allocate a memory for keymap.
This patch adds a missing kfree(keymap) in wb_module_init error path.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This is a driver for the ADXL345/346 Three-Axis Digital Accelerometers.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Chris Verges <chrisv@cyberswitching.com>
Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
A column or row configured as a GPI can be programmed to be part
of the key event table and therefore also capable of generating a
key event interrupt. A key event interrupt caused by a GPI follows
the same process flow as a key event interrupt caused by a key
press. GPIs configured as part of the key event table allow single
key switches and other GPI interrupts to be monitored. As part of
the event table, GPIs are represented by the decimal value 97 (0x61
or 1100001) through the decimal value 114 (0x72 or 1110010). See
table below for GPI event number assignments for rows and columns.
GPI Event Number Assignments for Rows
Row0 Row1 Row2 Row3 Row4 Row5 Row6 Row7
97 98 99 100 101 102 103 104
GPI Event Number Assignments for Cols
Col0 Col1 Col2 Col3 Col4 Col5 Col6 Col7 Col8 Col9
105 106 107 108 109 110 111 112 113 114
Signed-off-by: Xiaolong Chen <xiao-long.chen@motorola.com>
Signed-off-by: Yuanbo Ye <yuan-bo.ye@motorola.com>
Signed-off-by: Tao Hu <taohu@motorola.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
When the client buffer is very small and wraps around a lot, it may
well be that a write increases the head such that head == tail. If
this happens between the point where a poll is triggered and the
actual data is being read, there will be no data to read. This is
confusing to applications, which might end up closing the file.
This patch solves the problem by making sure the client buffer is
never empty after writing to it.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The MT devices produce a lot of data. Tell the underlying input device
approximately how many events will be sent per synchronization, to allow
for better buffering. The number is a template based on continuously
reporting details for each finger on a single hand.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The MT devices produce a lot of data. Tell the underlying input device
approximately how many events will be sent per synchronization, to allow
for better buffering. The number is a template based on continuously
reporting details for each finger on a single hand.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Some devices, in particular MT devices, produce a lot of data. This
may lead to overflowing of the event queues in evdev driver, which
by default are fairly small. Let the drivers hint the average number
of events per packet generated by the device, and use that information
when computing the buffer size evdev should use for the device.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Allocate the event buffer dynamically, and prepare to compute the
buffer size in a separate function. This patch defines the size
computation to be identical to the current code, and does not contain
any logical changes.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Stanse found that tsc is dereferenced earlier than checked for being
NULL in tps6507x_ts_remove. Remove the test because there is no way
for tsc to be NULL there.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
wimax/i2400m: fix missing endian correction read in fw loader
net8139: fix a race at the end of NAPI
pktgen: Fix accuracy of inter-packet delay.
pkt_sched: gen_estimator: add a new lock
net: deliver skbs on inactive slaves to exact matches
ipv6: fix ICMP6_MIB_OUTERRORS
r8169: fix mdio_read and update mdio_write according to hw specs
gianfar: Revive the driver for eTSEC devices (disable timestamping)
caif: fix a couple range checks
phylib: Add support for the LXT973 phy.
net: Print num_rx_queues imbalance warning only when there are allocated queues
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: The file argument for fsync() is never null
Btrfs: handle ERR_PTR from posix_acl_from_xattr()
Btrfs: avoid BUG when dropping root and reference in same transaction
Btrfs: prohibit a operation of changing acl's mask when noacl mount option used
Btrfs: should add a permission check for setfacl
Btrfs: btrfs_lookup_dir_item() can return ERR_PTR
Btrfs: btrfs_read_fs_root_no_name() returns ERR_PTRs
Btrfs: unwind after btrfs_start_transaction() errors
Btrfs: btrfs_iget() returns ERR_PTR
Btrfs: handle kzalloc() failure in open_ctree()
Btrfs: handle error returns from btrfs_lookup_dir_item()
Btrfs: Fix BUG_ON for fs converted from extN
Btrfs: Fix null dereference in relocation.c
Btrfs: fix remap_file_pages error
Btrfs: uninitialized data is check_path_shared()
Btrfs: fix fallocate regression
Btrfs: fix loop device on top of btrfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: clear bridge resource range if BIOS assigned bad one
PCI: hotplug/cpqphp, fix NULL dereference
Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/"
PCI: change resource collision messages from KERN_ERR to KERN_INFO
Yannick found that video does not work with 2.6.34. The cause of this
bug was that the BIOS had assigned the wrong range to the PCI bridge
above the video device. Before 2.6.34 the kernel would have shrunk
the size of the bridge window, but since
d65245c PCI: don't shrink bridge resources
the kernel will avoid shrinking BIOS ranges.
So zero out the old range if we fail to claim it at boot time; this will
cause us to allocate a new range at startup, restoring the 2.6.34
behavior.
Fixes regression https://bugzilla.kernel.org/show_bug.cgi?id=16009.
Reported-by: Yannick <yannick.roehlly@free.fr>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
