Re: Pluggable frame buffer devices

Hans Petter Selasky Mon, 16 Feb 2015 13:34:45 -0800

On 02/16/15 22:30, Mehmet Erol Sanliturk wrote:

On Mon, Feb 16, 2015 at 9:10 AM, Hans Petter Selasky <h...@selasky.org>
wrote:

On 02/16/15 16:39, Shawn Webb wrote:

On Sunday, February 15, 2015 11:14:47 PM Hans Petter Selasky wrote:

Hi,

I've added support for USB display link adapters to FreeBSD-11-current,
but the kernel panics once "vt_fb_attach(info)" is called from
"fbd_register(struct fb_info* info)" when the USB device is plugged or
udl.ko is loaded. Is this a known issue?

REF: https://svnweb.freebsd.org/base/head/sys/dev/usb/video/udl.c

--HPS


I personally can't answer your question. But I'd love to help test this,
especially since Haswell graphics isn't supported, yet, and my laptop is
running Haswell. What would be a good USB display device to buy to help
test
this awesome work out?


Hi Shawn,

I think any USB device that uses the brand name "DisplayLink" will work.

Current list of supported devices:

  /*

  * Matching devices.
  */
static const STRUCT_USB_HOST_ID udl_devs[] = {
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD4300U,
DL120)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LCD8000U,
DL120)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_GUC2020,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LD220,
DL165)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_VCUD60,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_DLDVI,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_VGA10,
DL120)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_WSDVI,
DLUNK)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_EC008,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_HPDOCK,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_NL571,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_M01061,
DL195)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_NBDOCK,
DL165)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_SWDVI,
DLUNK)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_UM7X0,
DL120)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_CONV,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_PLUGABLE,
DL160)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LUM70,
DL125)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_POLARIS2,
DLUNK)},
         {USB_VPI(USB_VENDOR_DISPLAYLINK, USB_PRODUCT_DISPLAYLINK_LT1421,
DLUNK)}
};



Also see:

man udl

Some work needs to be done to fully integrate with the VT console
subsystem. I had Xorg up and running today with the DisplayLink I adapter I
have, and I works quite well. With USB 3.0 ones I think we can expect more.

--HPS
_______________________________________________



Will there be support for the devices like the following USB video adapters
?


http://www.amazon.com/gp/product/B00GUE5LGS/ref=s9_simh_gw_p147_d0_i11?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-2&pf_rd_r=1QXWR8TQVH25A4KZWMDM&pf_rd_t=36701&pf_rd_p=1970566542&pf_rd_i=desktop


http://www.amazon.com/gp/product/B00A2E1MQA/ref=s9_simh_gw_p147_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-2&pf_rd_r=1QXWR8TQVH25A4KZWMDM&pf_rd_t=36701&pf_rd_p=1970566542&pf_rd_i=desktop


http://www.amazon.com/gp/product/B00612ZPQA/ref=s9_simh_gw_p147_d0_i2?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-2&pf_rd_r=1QXWR8TQVH25A4KZWMDM&pf_rd_t=36701&pf_rd_p=1970566542&pf_rd_i=desktop

Depending on what USB protocol they are using we can add support forthem. Maybe you need to buy one and dump the USB descriptors :-)


--HPS

_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"

Re: Pluggable frame buffer devices

Reply via email to