Spurious headphone detection interrupts
(02-11-2021, 07:58 PM)xyzzy Wrote: Linux has open source drivers for FT232R and pretty much all other RS-232/RS-485/RS-422 to USB chips.  There is no need to use a proprietary driver from FTDI.

I see that only FT232RL is supported in the Linux kernel mainline.  Though, as far as I can see in the FT232R datasheet, FT232RL is just a packaging variant of FT232R.  Am I correct?  If so, I have no longer any objections against using FT232R.  My initial views were skewed by some of the FTDI's marketing fluff.

(02-11-2021, 07:58 PM)xyzzy Wrote: And you do realize that the special cable with the 1/8" jack and USB has internally the exact same kind of chip with the exact same driver.  So any misgivings you have about virtual com ports (which is a Windows term and, IMHO, non-sense not based on reality), apply equally to that.

Absolutely, the "special" console cable is just the "external" version of the same thing.  The internal version would just place the bridge chip inside the laptop and expose the USB device interface, instead of exposing the UART in case of using the "external" version.  As already stated above, I really no longer have any objections against using FT232R.

(02-11-2021, 07:58 PM)xyzzy Wrote: While pine64 does have a cable for their other products that will physically fit the PBP, the voltage is wrong!  Do not use it!

Are you absolutely positive on that?

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RE: Spurious headphone detection interrupts - by dsimic - 02-13-2021, 04:48 PM

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