From: "Peter E. Berger" <pberger@xxxxxxxxxxx>
I found that when using newer Edgeport devices such as the EP/416,
idle ports are regularly bounced (disconnected and then reconnected).
I discussed this with the manufacturer (Digi International) and learned
that some newer Edgeport devices now ship from the factory running
firmware that requires periodic heartbeat messages from the driver, so
I enclose a proposed patch to implement their suggested mechanism (which
works both with old and new Edgeport devices).
While developing my heartbeat patch, I discovered that the firmware
download code was not working properly, so I also include two proposed
patches to fix this.
I welcome any comments or suggestions.
Thanks.
--Peter
Changes since v5 [1]
Addressing Johan's review comments. Thanks Johan!
- Merge the ten v5 patches into three.
- Move the ti_vsend_sync() "timeout" argument to the end of the
argument list.
[1]: v5: http://marc.info/?l=linux-usb&m=143439219222811&w=2
Peter E. Berger (3):
USB: io_ti: Increase insufficient timeout for firmware downloads
USB: io_ti: Move request_firmware() calls out of download_fw()
USB: io_ti: Add heartbeat to keep idle Edgeport ports from
disconnecting
drivers/usb/serial/io_ti.c | 216 +++++++++++++++++++++++++++++++--------------
1 file changed, 150 insertions(+), 66 deletions(-)
--
1.8.3.1
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