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 three proposed
patches to fix this.
I welcome any comments or suggestions.
Thanks.
--Peter
Changes since v6 [1]
Addressing Johan's review comments. Thanks Johan!
- Added a fourth patch to include sanity checks on the firmware image
[1]: v6: http://marc.info/?l=linux-usb&m=143462784601859&w=2
Peter E. Berger (4):
USB: io_ti: Increase insufficient timeout for firmware downloads
USB: io_ti: Move request_firmware() calls out of download_fw()
USB: io_ti: Add firmware image sanity checks
USB: io_ti: Add heartbeat to keep idle Edgeport ports from
disconnecting
drivers/usb/serial/io_ti.c | 267 ++++++++++++++++++++++++++++++++++-----------
1 file changed, 201 insertions(+), 66 deletions(-)
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
