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The following reply was made to PR kern/49115; it has been noted by GNATS.
From: christos%zoulas.com@localhost (Christos Zoulas)
To: Vicente Chaves de Melo <vicente.melo.br%ieee.org@localhost>,
Kamil Rytarowski <n54%gmx.com@localhost>, gnats-bugs%netbsd.org@localhost,
Subject: Re: kern/49115
Date: Wed, 10 Jun 2015 23:15:49 -0400
On Jun 10, 11:48pm, vicente.melo.br%ieee.org@localhost (Vicente Chaves de Melo) wrote:
-- Subject: Re: kern/49115
| Hello Kamil
| I created the following patch to NetBSD7
| based OpenBSD
| Revision 1.20 that contains the following description
| "It seems that there is new and old revision of CH340.
| Previous uchcom(4) driver targeted old one, and new one could not work
| because of uchcom_set_line_control() broke the value of
| To support new CH340, uchcom_set_line_control() and uchcom_reset_chip()
| have been overhauled. Current uchcom(4) does not change the value of
| UCHCOM_REG_LCR1 register, it means even/odd parity mode is no longer
| supported with old CH340."
Yes, but it looks like the new driver uses more magic values. Perhaps
there is a way to reverse engineer what's going on and make it work
properly for both.
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