Dnw Usb Driver For Mac
DisplayLink driver v4.3 Beta 6 stays available to force an AirPlay extended display on these machines until a fix is distributed. Information about macOS 10.13.4 to 10.13.6 Users of 10.13.4-10.13.6 should use v4.3.x as it contains a workaround to enable one extended USB display.
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This utility searches for available printing devices on the network, downloads the applicable printer driver through Internet and installs it to the PC with the minimum operations. PCL6 and PostScript3 drivers are available with this utility but Universal print drivers are not available. Windows OS already has built-in USB drivers for Android devices, but these drivers allow only users to transfer files. Download and install USB drivers on Windows PC or Mac PC to transfer data between Android device and PC, Unlock your bootloader, Installing TWRP, Rooting your device. USB is an industry standard for connecting computers and other devices. Many Mac computers have USB-A ports (sometimes referred to as USB 3 ports), which look like this. Easily connect your Mac computer to an Ethernet network with the Apple USB Ethernet Adapter. Small and light, it connects to the USB 2.0 port of your Mac and provides an RJ-45 connector that supports 10/100BASE-T performance. USB-C is certainly the port of the future, so grabbing a USB-C hard drive for your MacBook or MacBook Pro is the best way to take all of your files, music, photos, and more with you wherever you go without clogging up your Mac's own hard drive.
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| /* |
| * dnwOTG USB driver - 1.0 |
| * |
| * This file is licensed under the GPL. See COPYING in the package. |
| * Based on usb-skeleton.c 2.0 by Greg Kroah-Hartman (greg@kroah.com) |
| * |
| * |
| */ |
| #include<linux/kernel.h> |
| #include<linux/errno.h> |
| #include<linux/init.h> |
| #include<linux/slab.h> |
| #include<linux/module.h> |
| #include<linux/kref.h> |
| #include<asm/uaccess.h> |
| #include<linux/usb.h> |
| #include<linux/mutex.h> |
| #defineDRIVER_AUTHOR'ryan.chang@quantatw.com' |
| #defineDRIVER_DESC'Quanta DNW OTG USB Driver' |
| /* Define these values to match your devices */ |
| //Bus 005 Device 010: ID 04e8:1234 Samsung Electronics Co., Ltd |
| #defineUSB_DNW_VENDOR_ID0x04E8 |
| #defineUSB_DNW_PRODUCT_ID0x1234 |
| /* table of devices that work with this driver */ |
| staticstruct usb_device_id dnwOTG_table [] = { |
| { USB_DEVICE(USB_DNW_VENDOR_ID, USB_DNW_PRODUCT_ID) }, |
| { } /* Terminating entry */ |
| }; |
| MODULE_DEVICE_TABLE(usb, dnwOTG_table); |
| /* to prevent a race between open and disconnect */ |
| staticDEFINE_MUTEX(dnwOTG_open_lock); |
| /* Get a minor range for your devices from the usb maintainer */ |
| #defineUSB_DNW_MINOR_BASE192 |
| /* our private defines. if this grows any larger, use your own .h file */ |
| #defineMAX_TRANSFER (PAGE_SIZE - 512) |
| /* MAX_TRANSFER is chosen so that the VM is not stressed by |
| allocations > PAGE_SIZE and the number of packets in a page |
| is an integer 512 is the largest possible packet on EHCI */ |
| #defineWRITES_IN_FLIGHT8 |
| /* arbitrarily chosen */ |
| /* Structure to hold all of our device specific stuff */ |
| struct usb_dnwOTG { |
| struct usb_device *udev; /* the usb device for this device */ |
| struct usb_interface *interface; /* the interface for this device */ |
| struct semaphore limit_sem; /* limiting the number of writes in progress */ |
| unsignedchar *bulk_in_buffer; /* the buffer to receive data */ |
| size_t bulk_in_size; /* the size of the receive buffer */ |
| __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */ |
| __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */ |
| struct kref kref; |
| struct mutex io_mutex; /* synchronize I/O with disconnect */ |
| }; |
| #defineto_dnwOTG_dev(d) container_of(d, struct usb_dnwOTG, kref) |
| staticstruct usb_driver dnwOTG_driver; |
| intdnwOTG_SND(struct usb_dnwOTG *dnwOTGA2, |
| __u8 request, __u8 requesttype, |
| __u16 value, __u16 index, __u8 len) |
| { |
| char *dummy_buffer = kzalloc(4, GFP_KERNEL); |
| int result; |
| if (!dummy_buffer) |
| return -ENOMEM; |
| result = usb_control_msg(dnwOTGA2->udev, |
| usb_sndctrlpipe(dnwOTGA2->udev, 0), |
| request, requesttype, value, index, |
| dummy_buffer, len, 1000); |
| kfree(dummy_buffer); |
| return result; |
| } |
| staticinlinevoiddnwOTG_RCV(struct usb_dnwOTG *dnwOTGA2, |
| __u8 request, __u8 requesttype, |
| __u16 value, __u16 index, |
| char *buf, __u8 len) |
| { |
| int result; |
| result = usb_control_msg(dnwOTGA2->udev, |
| usb_rcvctrlpipe(dnwOTGA2->udev, 0), |
| request, requesttype, value, index, |
| buf, len, 1000); |
| } |
| staticvoiddnwOTG_delete(struct kref *kref) |
| { |
| struct usb_dnwOTG *dev = to_dnwOTG_dev(kref); |
| usb_put_dev(dev->udev); |
| kfree(dev->bulk_in_buffer); |
| kfree(dev); |
| } |
| staticintdnwOTG_open(struct inode *inode, struct file *file) |
| { |
| struct usb_dnwOTG *dev; |
| struct usb_interface *interface; |
| int subminor; |
| int retval = 0; |
| subminor = iminor(inode); |
| // info('DNW(i):: Amba open'); |
| mutex_lock(&dnwOTG_open_lock); |
| interface = usb_find_interface(&dnwOTG_driver, subminor); |
| if (!interface) { |
| mutex_unlock(&dnwOTG_open_lock); |
| err ('%s - error, can't find device for minor %d', |
| __FUNCTION__, subminor); |
| retval = -ENODEV; |
| gotoexit; |
| } |
| dev = usb_get_intfdata(interface); |
| if (!dev) { |
| mutex_unlock(&dnwOTG_open_lock); |
| retval = -ENODEV; |
| gotoexit; |
| } |
| /* increment our usage count for the device */ |
| kref_get(&dev->kref); |
| /* now we can drop the lock */ |
| mutex_unlock(&dnwOTG_open_lock); |
| if (retval) { |
| kref_put(&dev->kref, dnwOTG_delete); |
| gotoexit; |
| } |
| /* save our object in the file's private structure */ |
| file->private_data = dev; |
| exit: |
| return retval; |
| } |
| staticintdnwOTG_release(struct inode *inode, struct file *file) |
| { |
| struct usb_dnwOTG *dev; |
| dev = (struct usb_dnwOTG *)file->private_data; |
| if (dev NULL) |
| return -ENODEV; |
| /* allow the device to be autosuspended */ |
| mutex_lock(&dev->io_mutex); |
| mutex_unlock(&dev->io_mutex); |
| /* decrement the count on our device */ |
| kref_put(&dev->kref, dnwOTG_delete); |
| return0; |
| } |
| staticssize_tdnwOTG_write(struct file *file, constchar *user_buffer, size_t count, loff_t *ppos) |
| { |
| struct usb_dnwOTG *dev; |
| char *DNW_buf = NULL; |
| int retval = 0, r; |
| struct urb *urb = NULL; |
| char *buf = NULL; |
| int bytes_write=0; |
| //int write_size=min(count, (size_t)MAX_TRANSFER); |
| int write_size=count; |
| dev = (struct usb_dnwOTG *)file->private_data; |
| /* verify that we actually have some data to write */ |
| if (count 0) |
| gotoexit; |
| DNW_buf = kzalloc(write_size, GFP_KERNEL); |
| if (!DNW_buf) { |
| err('Out of memory 128K'); |
| return -ENOMEM; |
| } |
| r = down_interruptible(&dev->limit_sem); |
| if (r < 0) |
| return -EINTR; |
| if (copy_from_user(DNW_buf, user_buffer, write_size)) { |
| retval = -EFAULT; |
| gotoexit; |
| } |
| dev->bulk_out_endpointAddr = 0x02; |
| retval = usb_bulk_msg(dev->udev, |
| usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr), |
| DNW_buf, |
| write_size, |
| &bytes_write, 5000); |
| printk('Ryinfo:bytes_writed: %x(write_size=%x)n',bytes_write,write_size); |
| /* if the write was successful, return writen size */ |
| if (write_size bytes_write) { |
| retval = bytes_write; |
| }else{ |
| retval = -EFAULT; |
| } |
| exit: |
| kfree(DNW_buf); |
| up(&dev->limit_sem); |
| return retval; |
| } |
| staticssize_tdnwOTG_read(struct file *file, char *buffer, size_t count, loff_t *ppos) |
| { |
| struct usb_dnwOTG *dev; |
| int retval; |
| int bytes_read; |
| char *DNW_buf; |
| DNW_buf = kzalloc(128*1024, GFP_KERNEL); |
| if (!DNW_buf) { |
| err('Out of memory 128K'); |
| return -ENOMEM; |
| } |
| dev = (struct usb_dnwOTG *)file->private_data; |
| mutex_lock(&dev->io_mutex); |
| if (!dev->interface) { /* disconnect() was called */ |
| retval = -ENODEV; |
| gotoexit; |
| } |
| /* do a blocking bulk read to get data from the device */ |
| dev->bulk_in_endpointAddr = 0x81; |
| dev->bulk_in_size = 128*1024; |
| retval = usb_bulk_msg(dev->udev, |
| usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr), |
| DNW_buf, |
| min(dev->bulk_in_size, count), |
| &bytes_read, 5000); |
| /* if the read was successful, copy the data to userspace */ |
| if (!retval) { |
| if (copy_to_user(buffer, DNW_buf, bytes_read)) |
| retval = -EFAULT; |
| else |
| retval = bytes_read; |
| } |
| exit: |
| kfree(DNW_buf); |
| mutex_unlock(&dev->io_mutex); |
| return retval; |
| } |
| /** |
| * dnwOTG_ioctl |
| */ |
| staticintdnwOTG_ioctl (struct inode *inode, struct file *file, unsignedint cmd, unsignedlong arg) |
| { |
| struct usb_dnwOTG *dev; |
| dev = (struct usb_dnwOTG *)file->private_data; |
| return0; |
| } |
| staticconststruct file_operations dnwOTG_fops = { |
| .owner = THIS_MODULE, |
| //.read = dnwOTG_read, |
| .write = dnwOTG_write, |
| .open = dnwOTG_open, |
| //.ioctl = dnwOTG_ioctl, |
| .release = dnwOTG_release, |
| }; |
| /* |
| * usb class driver info in order to get a minor number from the usb core, |
| * and to have the device registered with the driver core |
| */ |
| staticstruct usb_class_driver dnwOTG_class = { |
| .name = 'dnwOTG', |
| .fops = &dnwOTG_fops, |
| .minor_base = USB_DNW_MINOR_BASE, |
| }; |
| /* |
| * Initialize device controls. |
| */ |
| intdnwOTG_init_device(struct usb_dnwOTG *dev) |
| { |
| char *buf = kzalloc(4, GFP_KERNEL); |
| int retval; |
| if (!buf) |
| return -ENOMEM; |
| info('DNW(i):: DNW INIT USB device'); |
| // retval=dnwOTG_SND(dev,0x01,0x21,0x3100,0xf000,20); |
| kfree(buf); |
| return0; |
| } |
| staticintdnwOTG_probe(struct usb_interface *interface, conststruct usb_device_id *id) |
| { |
| struct usb_dnwOTG *dev; |
| int retval = -ENOMEM; |
| /* allocate memory for our device state and initialize it */ |
| dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| if (!dev) { |
| err('Out of memory'); |
| goto error; |
| } |
| kref_init(&dev->kref); |
| sema_init(&dev->limit_sem, WRITES_IN_FLIGHT); |
| mutex_init(&dev->io_mutex); |
| dev->udev = usb_get_dev(interface_to_usbdev(interface)); |
| dev->interface = interface; |
| // usb_set_interface(dev->udev,interface->altsetting->desc.bInterfaceNumber,1); |
| /* save our data pointer in this interface device */ |
| usb_set_intfdata(interface, dev); |
| /* Initialize controls */ |
| if (dnwOTG_init_device(dev) < 0) { |
| err('Cound not init dnwOTG device'); |
| goto error; |
| } |
| /* we can register the device now, as it is ready */ |
| retval = usb_register_dev(interface, &dnwOTG_class); |
| if (retval) { |
| /* something prevented us from registering this driver */ |
| err('Not able to get a minor for this device.'); |
| usb_set_intfdata(interface, NULL); |
| goto error; |
| } |
| /* let the user know what node this device is now attached to */ |
| info('dnwOTGUSB device now attached to dnwOTGUSB-%d', interface->minor); |
| return0; |
| error: |
| if (dev) |
| /* this frees allocated memory */ |
| kref_put(&dev->kref, dnwOTG_delete); |
| return retval; |
| } |
| staticvoiddnwOTG_disconnect(struct usb_interface *interface) |
| { |
| struct usb_dnwOTG *dev; |
| intminor = interface->minor; |
| /* prevent dnwOTG_open() from racing dnwOTG_disconnect() */ |
| mutex_lock(&dnwOTG_open_lock); |
| dev = usb_get_intfdata(interface); |
| usb_set_intfdata(interface, NULL); |
| /* give back our minor */ |
| usb_deregister_dev(interface, &dnwOTG_class); |
| mutex_unlock(&dnwOTG_open_lock); |
| /* prevent more I/O from starting */ |
| mutex_lock(&dev->io_mutex); |
| dev->interface = NULL; |
| mutex_unlock(&dev->io_mutex); |
| /* decrement our usage count */ |
| kref_put(&dev->kref, dnwOTG_delete); |
| info('dnwOTGUSB #%d now disconnected', minor); |
| } |
| staticstruct usb_driver dnwOTG_driver = { |
| .name = 'DNW', |
| .probe = dnwOTG_probe, |
| .disconnect = dnwOTG_disconnect, |
| .id_table = dnwOTG_table, |
| }; |
| staticint __init usb_dnwOTG_init(void) |
| { |
| int result; |
| /* register this driver with the USB subsystem */ |
| result = usb_register(&dnwOTG_driver); |
| if (result) |
| err('usb_register failed. Error number %d', result); |
| return result; |
| } |
| staticvoid __exit usb_dnwOTG_exit(void) |
| { |
| /* deregister this driver with the USB subsystem */ |
| usb_deregister(&dnwOTG_driver); |
| } |
| module_init(usb_dnwOTG_init); |
| module_exit(usb_dnwOTG_exit); |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE('GPL'); |
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What you need to install Windows 10 on Mac
- MacBook introduced in 2015 or later
- MacBook Air introduced in 2012 or later
- MacBook Pro introduced in 2012 or later
- Mac mini introduced in 2012 or later
- iMac introduced in 2012 or later1
- iMac Pro (all models)
- Mac Pro introduced in 2013
The latest macOS updates, which can include updates to Boot Camp Assistant. You will use Boot Camp Assistant to install Windows 10.
64GB or more free storage space on your Mac startup disk:
- You can have as little as 64GB of free storage space, but at least 128GB of free storage space provides the best experience. Automatic Windows updates require that much space or more.
- If your Mac has 128GB of memory (RAM) or more, the Windows installer needs at least as much free storage space as your Mac has memory. For example, if your Mac has 256GB of memory, your startup disk must have at least 256GB of free storage space for Windows.
An external USB flash drive with a storage capacity of 16GB or more, unless you're using a Mac that doesn't need a flash drive to install Windows.
A 64-bit version of Windows 10 Home or Windows 10 Pro on a disk image (ISO) or other installation media:
- If installing Windows on your Mac for the first time, use a full version of Windows, not an upgrade.
- If your copy of Windows came on a USB flash drive, or you have a Windows product key and no installation disc, download a Windows 10 disk image from Microsoft.
- If your copy of Windows came on a DVD, you might need to create a disk image of that DVD.
How to install Windows 10 on Mac
To install Windows, use Boot Camp Assistant. It's in the Utilities folder of your Applications folder.
1. Use Boot Camp Assistant to create a Windows partition
Open Boot Camp Assistant and follow the onscreen instructions:
- If you're asked to insert a USB drive, plug your USB flash drive into your Mac. Boot Camp Assistant will use it to create a bootable USB drive for Windows installation.
- When Boot Camp Assistant asks you to set the size of the Windows partition, remember the minimum storage-space requirements in the previous section. Set a partition size that meets your needs, because you can't change its size later.
2. Format the Windows (BOOTCAMP) partition
When Boot Camp Assistant finishes, your Mac restarts to the Windows installer. If the installer asks where to install Windows, select the BOOTCAMP partition and click Format. In most cases, the installer selects and formats the BOOTCAMP partition automatically.
3. Install Windows
Unplug any external devices, such as additional displays and drives, that aren't necessary during installation. Then click Next and follow the onscreen instructions to begin installing Windows.
4. Use the Boot Camp installer in Windows
After Windows installation completes, your Mac starts up in Windows and opens a ”Welcome to the Boot Camp installer” window. Follow the onscreen instructions to install Boot Camp, including Windows support software (drivers). You will be asked to restart when done.
If the Boot Camp installer doesn't open automatically, your final step should be to open the Boot Camp installer manually and use it to complete installation.
Usb Driver For Mac
How to switch between Windows and macOS
Restart, then press and hold the Option (or Alt) ⌥ key during startup to switch between Windows and macOS.
Learn more
If you have one of these Mac models using OS X El Capitan 10.11 or later, you don't need a USB flash drive to install Windows:
- MacBook introduced in 2015 or later
- MacBook Air introduced in 2015 or later2
- MacBook Pro introduced in 2015 or later2
- iMac introduced in 2015 or later
- iMac Pro (all models)
- Mac Pro introduced in late 2013
For more information about using Windows on your Mac, open Boot Camp Assistant and click the Open Boot Camp Help button.
1. If you're installing Windows and macOS Mojave on an iMac (27-inch, Late 2012), iMac (27-inch, Late 2013), or iMac (Retina 5K, 27-inch, Late 2014) and your Mac is configured with a 3TB hard drive, learn about an alert you might see during installation.
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2. These Mac models were offered with 128GB hard drives as an option. Apple recommends 256GB or larger hard drives so that you can create a Boot Camp partition of at least 128GB.