Fantastic, thank you so much for the help. On 2/11/19 11:54 AM, Johan Hovold wrote: > On Sun, Feb 10, 2019 at 01:49:16AM +0330, Ebrahim Byagowi wrote: >> On 2/9/19 7:11 PM, Johan Hovold wrote: >>> On Sat, Feb 09, 2019 at 02:14:21PM +0330, Ebrahim Byagowi wrote: >>>> On 2/9/19 1:16 PM, Johan Hovold wrote: >>>>> On Sat, Feb 09, 2019 at 12:18:40PM +0330, ebrahim@xxxxxxx wrote: >>>>>> From: Ebrahim Byagowi <ebrahim@xxxxxxx> >>>>>> >>>>>> This makes Delock Infrared adapter to work as a USB to Serial device. >>>>>> --- >>>>>> drivers/usb/serial/pl2303.c | 1 + >>>>>> drivers/usb/serial/pl2303.h | 3 +++ >>>>>> 2 files changed, 4 insertions(+) >>> These descriptors do no look like they come from a pl2303 device (e.g. >>> the device descriptor class and protocol is 255/1/0 and not 0/0/0). >>> >>>> I've uploaded a screenshot here >>>> https://commons.wikimedia.org/wiki/File:A_modified_kernel_screenshot_on_QEMU.png >>>> which shows it understands a remote control commands also. >>> It shows that you receive something over the bulk-in endpoint at the >>> default line speed, but those -EPIPE errors also tells us that this is >>> not a pl2303 device. >> Oh, understandable. And very sorry that I was misleading here. > No, problem. > >>> Would you be able to open the device to see if you can identify a >>> generic usb-serial chip inside? >> Here is a picture of its inside[1] and that 3606 apparently is the usb >> to serial chip. >> >> We suspected it is related to[2] but its pins doesn't match and I >> couldn't yet test the module provided there is related for some reason >> so any pointer will be nice. > No, sorry. It's seems unlikely to be a mcs7780 given the pins. > > Perhaps looking closer at the windows driver and snooping traffic might > provide some insights into the protocol used. > > A search also revealed one libusb project for this device on > sourcefourge, but judging from a very quick look it also just did reads > and writes over the bulk-endpoints without any control commands. But > perhaps someone has done some research in this area before you. > > Johan > >> [1]: >> https://commons.wikimedia.org/wiki/File:Infrared_Device,_VID1685_PID0200.jpg >> >> [2]: >> https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=112;74;109&PLine=74 >
