Power Cycling cards II
David H. Lynch Jr.
dhlii at dlasys.net
Tue May 13 17:24:30 EDT 2008
How do I force Linux to rescan for pcmcia/cardbus/expresscard cards.
The bus interface in our cards is in an FPGA.
Should something go fluey on the card, there will be no bus interface.
We can temporarily reprogram the card externally ( via JTAG)
But to permanently program the card we need to access it from the host.
The gotcha is that after the card has been programmed via JTAG,
Linux is not noticing that the card has changed from brain dead to
usable, that it now has proper CIS ID's etc.
So how can I tell Linux to go out and look for the card again.
In this instance WITHOUT cycling the power on the card.
Dave Lynch DLA Systems
Software Development: Embedded Linux
717.627.3770 dhlii at dlasys.net http://www.dlasys.net
fax: 1.253.369.9244 Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too numerous to list.
"Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
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