DOWNLOAD toshiba DRIVER ACPI / TOS6205DRIVER TOSHIBA ACPI /TOS6205 Many notebook Toshiba after formattingalso installing Windows 7 have in thepanel of devices a yellow exclamation mark on an unknown device whose code is ACPI / TOS6205 The driver in question is part of thepackage PC BLUETOOTH STACK,downloadable HERE ' . DOWNLOAD DRIVER ACPI / TOS6205 . High up in the PC Bluetooth Stack,download the drivers for the version ofyour computer.
Driver Acpi Tos6205 Toshiba
In this article we'll be looking at writing a driver to manage a persistent irritation on Toshiba hardware: the case of the missing Bluetooth. Some Toshibas will boot without Bluetooth, or will manage to lose it somewhere between being suspended and resumed. Sometimes it'll be there until the owner hits the rfkill switch, at which point it's gone no matter how plaintively the user flicks the switch back and forth. In short, the Bluetooth interface is fickle, flaky and not to be relied upon.We're lucky, though. Toshiba implemented their Bluetooth control inthe form of an ACPI device. At this point some of you may feel thatthis is some unusual meaning of the word "lucky", but it's really notas bad as it could be. First, we'll need one of the ACPI tables. ACPItables are sections of information provided to the operating system bythe BIOS; they contain either blocks of configuration information or,alternatively, executable code in a compiled bytecode called AML. Thetable that we want is the "Discrete System Descriptor Table", orDSDT. This provides a set of configuration information and controlmethods for the system hardware. On Linux, it can be found in/sys/firmware/acpi/tables/DSDT. We need to decompile it from the AMLbytecode to ASL (ACPI Source Language), which can be done with iasl -the Intel ACPI compiler. This will typically be available as a packagein distributions but can also be downloaded as source fromacpica.org . The -doption to iasl decompiles an executable table to something resembling the original source. Forreference there's an example of a decompiledDSDT here,and it contains the devices and methods discussed in the rest of thisarticle.Looking at the decompiled DSDT, the first thing we realise is thatthere's a huge pile of junk and extraneous configuration in here, solet's try to find something useful. First of all, let's look forinteresting devices. ACPI device names are limited to four characters,which is generally not helpful in finding something interesting fromscratch. Thankfully there's also the _HID string, which provides a tagfor identifying the type of device. These strings use the samenamespace as old ISA PNP devices, so some of them may be familiar tothose of you who spent too long cursing at IRQ and IO settings in thebad old days. So ignore anything with a _HID tag that starts withPNP - it's some piece of standardized system hardware that's unlikely to bedoing anything interesting.On this Toshiba, that leaves us with 5 devices - NSC1100, SMCF030,TOS6205, ACPI0003 and TOS6208. According to the ACPI specification,ACPI0003 is an AC adapter. So ignore that. Google says that NSC1100 isa TPM device. SMCF030 is an infrared port. So that leaves TOS6205 andTOS6208, which look something like this: Device (BT) Name (_HID, "TOS6205")... Device (VALZ) Name (_HID, "TOS6208")... VALZ turns out to be the generic event and control interface for allkinds of other bits of laptop functionality. There's already a driverfor this in the kernel (toshiba_acpi.c), so let's ignore that. The onecalled BT certainly sounds like a better bet, so TOS6205 it is.At this point we can write a skeleton driver that does nothing other than bind to this ACPI device. It's only a few lines of code to do that, and it's consistent between all ACPI drivers. All we need to do is register an ACPI driver structure with add and remove functions. These will be called whenever the kernel finds an ACPI device with the TOS6205 ID, and we can do further setup there. #include #include #include #include #include #include static int toshiba_bt_rfkill_add(struct acpi_device *device); static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type); static const struct acpi_device_id bt_device_ids[] = "TOS6205", 0, "", 0, ; MODULE_DEVICE_TABLE(acpi, bt_device_ids); static struct acpi_driver toshiba_bt_driver = .name = "Toshiba BT", .class = "Toshiba", .ids = bt_device_ids, .ops = .add = toshiba_bt_rfkill_add, .remove = toshiba_bt_rfkill_remove, ,.owner =THIS_MODULE, ; static int toshiba_bt_rfkill_add(struct acpi_device *device) return 0; static int __init toshiba_bt_rfkill_init(void) int result = 0; result = acpi_bus_register_driver(&toshiba_bt_driver); if (result modernjazz (guest, #4185) [Link] 2ff7e9595c
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