diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus | 10 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus | 19 | ||||
| -rw-r--r-- | Documentation/hid/hiddev.txt (renamed from Documentation/usb/hiddev.txt) | 0 | ||||
| -rw-r--r-- | Documentation/hid/hidraw.txt | 119 |
4 files changed, 135 insertions, 13 deletions
diff --git a/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus new file mode 100644 index 00000000000..c2a270b45b0 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus @@ -0,0 +1,10 @@ +What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile +Date: October 2010 +Contact: Stefan Achatz <erazor_de@users.sourceforge.net> +Description: The integer value of this attribute ranges from 0-4. + When read, this attribute returns the number of the actual + profile. This value is persistent, so its equivalent to the + profile that's active when the mouse is powered on next time. + When written, this file sets the number of the startup profile + and the mouse activates this profile immediately. + Please use actual_profile, it does the same thing. diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus index 326e05452da..c1b53b8bc2a 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus @@ -1,9 +1,12 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/actual_profile Date: October 2010 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: When read, this file returns the number of the actual profile in - range 0-4. - This file is readonly. +Description: The integer value of this attribute ranges from 0-4. + When read, this attribute returns the number of the actual + profile. This value is persistent, so its equivalent to the + profile that's active when the mouse is powered on next time. + When written, this file sets the number of the startup profile + and the mouse activates this profile immediately. Users: http://roccat.sourceforge.net What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version @@ -89,16 +92,6 @@ Description: The mouse has a tracking- and a distance-control-unit. These This file is writeonly. Users: http://roccat.sourceforge.net -What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile -Date: October 2010 -Contact: Stefan Achatz <erazor_de@users.sourceforge.net> -Description: The integer value of this attribute ranges from 0-4. - When read, this attribute returns the number of the profile - that's active when the mouse is powered on. - When written, this file sets the number of the startup profile - and the mouse activates this profile immediately. -Users: http://roccat.sourceforge.net - What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu Date: October 2010 Contact: Stefan Achatz <erazor_de@users.sourceforge.net> diff --git a/Documentation/usb/hiddev.txt b/Documentation/hid/hiddev.txt index 6e8c9f1d2f2..6e8c9f1d2f2 100644 --- a/Documentation/usb/hiddev.txt +++ b/Documentation/hid/hiddev.txt diff --git a/Documentation/hid/hidraw.txt b/Documentation/hid/hidraw.txt new file mode 100644 index 00000000000..029e6cb9a7e --- /dev/null +++ b/Documentation/hid/hidraw.txt @@ -0,0 +1,119 @@ + HIDRAW - Raw Access to USB and Bluetooth Human Interface Devices + ================================================================== + +The hidraw driver provides a raw interface to USB and Bluetooth Human +Interface Devices (HIDs). It differs from hiddev in that reports sent and +received are not parsed by the HID parser, but are sent to and received from +the device unmodified. + +Hidraw should be used if the userspace application knows exactly how to +communicate with the hardware device, and is able to construct the HID +reports manually. This is often the case when making userspace drivers for +custom HID devices. + +Hidraw is also useful for communicating with non-conformant HID devices +which send and receive data in a way that is inconsistent with their report +descriptors. Because hiddev parses reports which are sent and received +through it, checking them against the device's report descriptor, such +communication with these non-conformant devices is impossible using hiddev. +Hidraw is the only alternative, short of writing a custom kernel driver, for +these non-conformant devices. + +A benefit of hidraw is that its use by userspace applications is independent +of the underlying hardware type. Currently, Hidraw is implemented for USB +and Bluetooth. In the future, as new hardware bus types are developed which +use the HID specification, hidraw will be expanded to add support for these +new bus types. + +Hidraw uses a dynamic major number, meaning that udev should be relied on to +create hidraw device nodes. Udev will typically create the device nodes +directly under /dev (eg: /dev/hidraw0). As this location is distribution- +and udev rule-dependent, applications should use libudev to locate hidraw +devices attached to the system. There is a tutorial on libudev with a +working example at: + http://www.signal11.us/oss/udev/ + +The HIDRAW API +--------------- + +read() +------- +read() will read a queued report received from the HID device. On USB +devices, the reports read using read() are the reports sent from the device +on the INTERRUPT IN endpoint. By default, read() will block until there is +a report available to be read. read() can be made non-blocking, by passing +the O_NONBLOCK flag to open(), or by setting the O_NONBLOCK flag using +fcntl(). + +On a device which uses numbered reports, the first byte of the returned data +will be the report number; the report data follows, beginning in the second +byte. For devices which do not use numbered reports, the report data +will begin at the first byte. + +write() +-------- +The write() function will write a report to the device. For USB devices, if +the device has an INTERRUPT OUT endpoint, the report will be sent on that +endpoint. If it does not, the report will be sent over the control endpoint, +using a SET_REPORT transfer. + +The first byte of the buffer passed to write() should be set to the report +number. If the device does not use numbered reports, the first byte should +be set to 0. The report data itself should begin at the second byte. + +ioctl() +-------- +Hidraw supports the following ioctls: + +HIDIOCGRDESCSIZE: Get Report Descriptor Size +This ioctl will get the size of the device's report descriptor. + +HIDIOCGRDESC: Get Report Descriptor +This ioctl returns the device's report descriptor using a +hidraw_report_descriptor struct. Make sure to set the size field of the +hidraw_report_descriptor struct to the size returned from HIDIOCGRDESCSIZE. + +HIDIOCGRAWINFO: Get Raw Info +This ioctl will return a hidraw_devinfo struct containing the bus type, the +vendor ID (VID), and product ID (PID) of the device. The bus type can be one +of: + BUS_USB + BUS_HIL + BUS_BLUETOOTH + BUS_VIRTUAL +which are defined in linux/input.h. + +HIDIOCGRAWNAME(len): Get Raw Name +This ioctl returns a string containing the vendor and product strings of +the device. The returned string is Unicode, UTF-8 encoded. + +HIDIOCGRAWPHYS(len): Get Physical Address +This ioctl returns a string representing the physical address of the device. +For USB devices, the string contains the physical path to the device (the +USB controller, hubs, ports, etc). For Bluetooth devices, the string +contains the hardware (MAC) address of the device. + +HIDIOCSFEATURE(len): Send a Feature Report +This ioctl will send a feature report to the device. Per the HID +specification, feature reports are always sent using the control endpoint. +Set the first byte of the supplied buffer to the report number. For devices +which do not use numbered reports, set the first byte to 0. The report data +begins in the second byte. Make sure to set len accordingly, to one more +than the length of the report (to account for the report number). + +HIDIOCGFEATURE(len): Get a Feature Report +This ioctl will request a feature report from the device using the control +endpoint. The first byte of the supplied buffer should be set to the report +number of the requested report. For devices which do not use numbered +reports, set the first byte to 0. The report will be returned starting at +the first byte of the buffer (ie: the report number is not returned). + +Example +--------- +In samples/, find hid-example.c, which shows examples of read(), write(), +and all the ioctls for hidraw. The code may be used by anyone for any +purpose, and can serve as a starting point for developing applications using +hidraw. + +Document by: + Alan Ott <alan@signal11.us>, Signal 11 Software |