From c9755e14a01987ada4063e8b4c50c2b6738d879e Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Mon, 24 Mar 2008 20:54:28 +0100 Subject: firewire: reread config ROM when device reset the bus When a device changes its configuration ROM, it announces this with a bus reset. firewire-core has to check which node initiated a bus reset and whether any unit directories went away or were added on this node. Tested with an IOI FWB-IDE01AB which has its link-on bit set if bus power is available but does not respond to ROM read requests if self power is off. This implements - recognition of the units if self power is switched on after fw-core gave up the initial attempt to read the config ROM, - shutdown of the units when self power is switched off. Also tested with a second PC running Linux/ieee1394. When the eth1394 driver is inserted and removed on that node, fw-core now notices the addition and removal of the IPv4 unit on the ieee1394 node. Signed-off-by: Stefan Richter --- drivers/firewire/fw-card.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/firewire/fw-card.c') diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c index 140b34d477d..7e4012db6ad 100644 --- a/drivers/firewire/fw-card.c +++ b/drivers/firewire/fw-card.c @@ -331,7 +331,7 @@ fw_card_bm_work(struct work_struct *work) */ spin_unlock_irqrestore(&card->lock, flags); goto out; - } else if (root_device->config_rom[2] & BIB_CMC) { + } else if (root_device->cmc) { /* * FIXME: I suppose we should set the cmstr bit in the * STATE_CLEAR register of this node, as described in -- cgit v1.2.3