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authorDan Williams <dcbw@redhat.com>2010-09-27 15:52:29 -0500
committerDan Williams <dcbw@redhat.com>2010-09-27 16:04:11 -0500
commit81d0fd148f8c72a2e50b4e6fe82496daa28a91cc (patch)
tree018523e51a5d5a56330033c1e0dc5c284d5304ca /src/mm-errors.c
parent3c8c3f742525e045fee728a469c4da405f291f08 (diff)
core: better debugging of serial port open/close
Some devices don't interact well with the option drivr or the usb-serial layer; they don't respond to the USB data requests and thus data never gets written to that port. When close(2) is called, that data is still pending and so the tty layer waits 30 seconds before returning from the close. This is the 'closing_wait' value, which unfortunately is not able to be modified by ModemManager because most serial drivers for 3G devices don't implement the .ioctl handler or its TCIOSSERIAL option to change closing_wait. Print out open/close timestamps to help debug this issue and get a list of modems that have this problem.
Diffstat (limited to 'src/mm-errors.c')
0 files changed, 0 insertions, 0 deletions