C++ (Cpp) tahvo_usb_stop_peripheral Examples

Example #1

File: phy-tahvo.c Project: 3null/linux

static ssize_t otg_mode_store(struct device *device,
			      struct device_attribute *attr,
			      const char *buf, size_t count)
{
	struct tahvo_usb *tu = dev_get_drvdata(device);
	int r;

	mutex_lock(&tu->serialize);
	if (count >= 4 && strncmp(buf, "host", 4) == 0) {
		if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL)
			tahvo_usb_stop_peripheral(tu);
		tu->tahvo_mode = TAHVO_MODE_HOST;
		if (tu->phy.otg->host) {
			dev_info(device, "HOST mode: host controller present\n");
			tahvo_usb_become_host(tu);
		} else {
			dev_info(device, "HOST mode: no host controller, powering off\n");
			tahvo_usb_power_off(tu);
		}
		r = strlen(buf);
	} else if (count >= 10 && strncmp(buf, "peripheral", 10) == 0) {
		if (tu->tahvo_mode == TAHVO_MODE_HOST)
			tahvo_usb_stop_host(tu);
		tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
		if (tu->phy.otg->gadget) {
			dev_info(device, "PERIPHERAL mode: gadget driver present\n");
			tahvo_usb_become_peripheral(tu);
		} else {
			dev_info(device, "PERIPHERAL mode: no gadget driver, powering off\n");
			tahvo_usb_power_off(tu);
		}
		r = strlen(buf);
	} else {
		r = -EINVAL;
	}
	mutex_unlock(&tu->serialize);

	return r;
}

Example #2

File: tahvo-usb.c Project: mozyg/kernel

static ssize_t otg_mode_store(struct device *device,
			      struct device_attribute *attr,
			      const char *buf, size_t count)
{
	struct tahvo_usb *tu = (struct tahvo_usb*) device->driver_data;
	int r;

	r = strlen(buf);
	mutex_lock(&tu->serialize);
	if (strncmp(buf, "host", 4) == 0) {
		if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL)
			tahvo_usb_stop_peripheral(tu);
		tu->tahvo_mode = TAHVO_MODE_HOST;
		if (tu->otg.host) {
			printk(KERN_INFO "Selected HOST mode: host controller present.\n");
			tahvo_usb_become_host(tu);
		} else {
			printk(KERN_INFO "Selected HOST mode: no host controller, powering off.\n");
			tahvo_usb_power_off(tu);
		}
	} else if (strncmp(buf, "peripheral", 10) == 0) {
		if (tu->tahvo_mode == TAHVO_MODE_HOST)
			tahvo_usb_stop_host(tu);
		tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
		if (tu->otg.gadget) {
			printk(KERN_INFO "Selected PERIPHERAL mode: gadget driver present.\n");
			tahvo_usb_become_peripheral(tu);
		} else {
			printk(KERN_INFO "Selected PERIPHERAL mode: no gadget driver, powering off.\n");
			tahvo_usb_power_off(tu);
		}
	} else
		r = -EINVAL;

	mutex_unlock(&tu->serialize);
	return r;
}