On Fri, 2016-10-07 at 12:28 -0500, Dan Williams wrote:
Some TTY drivers or devices appear to ignore port speed and always report zero. Technically this means the port is hung up and control lines should be disconnected, but with USB devices many of the serial port attributes are meaningless and ignored by some devices. pppd requires the port's speed to be greater than zero, and will exit immediately when that is not the case, even though these modems will work fine. Passing an explicit speed to pppd in this case works around the issue, as pppd attempts to set that speed on the port and doesn't actually care if that operation fails. https://bugzilla.redhat.com/show_bug.cgi?id=1281731
Acked-By: Thomas Haller <thaller redhat com>
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