* It is inspired by hidraw, but uses only one circular buffer for all readers.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/cdev.h>
#include <linux/poll.h>
#include <linux/sched.h>
mutex_lock(&device->readers_lock);
if (!device) {
- printk(KERN_EMERG "roccat device with minor %d doesn't exist\n",
- minor);
+ pr_emerg("roccat device with minor %d doesn't exist\n", minor);
error = -ENODEV;
goto exit_err;
}
if (!device->open++) {
/* power on device on adding first reader */
- if (device->hid->ll_driver->power) {
- error = device->hid->ll_driver->power(device->hid,
- PM_HINT_FULLON);
- if (error < 0) {
- --device->open;
- goto exit_err;
- }
+ error = hid_hw_power(device->hid, PM_HINT_FULLON);
+ if (error < 0) {
+ --device->open;
+ goto exit_err;
}
- error = device->hid->ll_driver->open(device->hid);
+
+ error = hid_hw_open(device->hid);
if (error < 0) {
- if (device->hid->ll_driver->power)
- device->hid->ll_driver->power(device->hid,
- PM_HINT_NORMAL);
+ hid_hw_power(device->hid, PM_HINT_NORMAL);
--device->open;
goto exit_err;
}
device = devices[minor];
if (!device) {
mutex_unlock(&devices_lock);
- printk(KERN_EMERG "roccat device with minor %d doesn't exist\n",
- minor);
+ pr_emerg("roccat device with minor %d doesn't exist\n", minor);
return -ENODEV;
}
if (!--device->open) {
/* removing last reader */
if (device->exist) {
- if (device->hid->ll_driver->power)
- device->hid->ll_driver->power(device->hid,
- PM_HINT_NORMAL);
- device->hid->ll_driver->close(device->hid);
+ hid_hw_power(device->hid, PM_HINT_NORMAL);
+ hid_hw_close(device->hid);
} else {
kfree(device);
}
device_destroy(roccat_class, MKDEV(roccat_major, minor));
if (device->open) {
- device->hid->ll_driver->close(device->hid);
+ hid_hw_close(device->hid);
wake_up_interruptible(&device->wait);
} else {
kfree(device);
.poll = roccat_poll,
.open = roccat_open,
.release = roccat_release,
+ .llseek = noop_llseek,
};
static int __init roccat_init(void)
roccat_major = MAJOR(dev_id);
if (retval < 0) {
- printk(KERN_WARNING "roccat: can't get major number\n");
+ pr_warn("can't get major number\n");
return retval;
}