Re: PROBLEM: ch341 module fails with EPROTO when I plug-in Arduino board)

2015-08-06 Thread Evgen Druzhynin
2015-07-07 14:28 GMT+03:00 Evgen Druzhynin : > 2015-07-07 14:06 GMT+03:00 Johan Hovold : > I'll try to find exact kernel version where issue was introduced ASAP. Hi all, Root cause is chinese Arduino board (ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter). The board some

PROBLEM: ch341 module fails with EPROTO when I plug-in Arduino board

2015-07-05 Thread Evgen Druzhynin
[1.] One line summary of the problem: ch341 module fails on 4.1.1 kernel [2.] Full description of the problem/report: It's not possible to work with Arduino board after installing 4.1.1. ch341 fails and does not create /dev/ttyUSB0 (or /dev/ttyACM0) entry. On 3.18 and 4.0.0 all was ok. [3.] Keywo

Re: ch341: support new device types (Was: Re: PROBLEM: ch341 module fails with EPROTO when I plug-in Arduino board)

2015-07-07 Thread Evgen Druzhynin
Sorry for misunderstanding, I've tested the behavior of Arduino board on 2 machines and the result is following: PASSED - Arduino board was connected successfully FAILED - ch341 errors arose 1st machine [USB 3.0] -- Linux 3.18 -- PASSED 1st machine [USB 3.0] -- Linux 4.* -- FAILED 2nd machine [U

Re: ch341: support new device types (Was: Re: PROBLEM: ch341 module fails with EPROTO when I plug-in Arduino board)

2015-07-07 Thread Evgen Druzhynin
Sorry for misunderstanding, I've tested the behavior of Arduino board on 2 machines and the result is following: PASSED - Arduino board connected successfully FAILED - ch341 errors arose 1st machine [USB 3.0] -- Linux 3.18 -- PASSED 1st machine [USB 3.0] -- Linux 4.* -- FAILED 2nd machine [USB 2

Re: PROBLEM: ch341 module fails with EPROTO when I plug-in Arduino board)

2015-07-07 Thread Evgen Druzhynin
2015-07-07 14:06 GMT+03:00 Johan Hovold : > Ok, so it looks like a regression between 3.18 and 4.0. > > Could you try v3.19 and then run a bisect on either v3.18..v3.19 or > v3.19..v4.0 depending on the result? > > Please verify that v3.18 works and v4.0 fails. Specifically, do not use > stable rel