C++ (Cpp) do_acpi_call Examples

Example #1

File: acpi_call.c Project: damadmai/acpi_call

static int acpi_proc_write( struct file *filp, const char __user *buff,
    unsigned long len, void *data )
#endif
{
    char input[2 * BUFFER_SIZE] = { '\0' };
    union acpi_object *args;
    int nargs, i;
    char *method;

    if (len > sizeof(input) - 1) {
        printk(KERN_ERR "acpi_call: Input too long! (%lu)\n", len);
        return -ENOSPC;
    }

    if (copy_from_user( input, buff, len )) {
        return -EFAULT;
    }
    input[len] = '\0';
    if (input[len-1] == '\n')
        input[len-1] = '\0';

    method = parse_acpi_args(input, &nargs, &args);
    if (method) {
        do_acpi_call(method, nargs, args);
        if (args) {
            for (i=0; i<nargs; i++)
                if (args[i].type == ACPI_TYPE_BUFFER)
                    kfree(args[i].buffer.pointer);
            kfree(args);
        }
    }

    return len;
}

Example #2

File: acpi_call.c Project: fiox/acpi_call

static int acpi_proc_write( struct file *filp, const char __user *buff,
    unsigned long len, void *data )
{
    char input[256] = { '\0' };

    if (len > sizeof(input) - 1) {
        printk(KERN_ERR "acpi_call: Input too long! (%lu)\n", len);
        return -ENOSPC;
    }

    if (copy_from_user( input, buff, len )) {
        return -EFAULT;
    }
    input[len] = '\0';
    if (input[len-1] == '\n')
        input[len-1] = '\0';

    do_acpi_call(input);
    return len;
}