diff options
| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2008-02-03 23:03:00 +0100 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2008-02-16 15:40:34 +0100 |
| commit | fa6e697b85d705d37b3b03829095c22bcbe95ab6 (patch) | |
| tree | 97a04a835efb45646391e265c8e5ea17b3b9a384 /drivers/firewire | |
| parent | be6f48b0174584c9c415012ca14803c7e941e27e (diff) | |
| download | kernel_samsung_smdk4412-fa6e697b85d705d37b3b03829095c22bcbe95ab6.zip kernel_samsung_smdk4412-fa6e697b85d705d37b3b03829095c22bcbe95ab6.tar.gz kernel_samsung_smdk4412-fa6e697b85d705d37b3b03829095c22bcbe95ab6.tar.bz2 | |
firewire: log GUID of new devices
This should help to interpret user reports. E.g. one can look up the
vendor OUI (first three bytes of the GUID) and thus tell what is what.
Also simplifies the math in the GUID sysfs attribute.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/fw-device.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index c04c288..2ab13e0 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -358,12 +358,9 @@ static ssize_t guid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct fw_device *device = fw_device(dev); - u64 guid; - guid = ((u64)device->config_rom[3] << 32) | device->config_rom[4]; - - return snprintf(buf, PAGE_SIZE, "0x%016llx\n", - (unsigned long long)guid); + return snprintf(buf, PAGE_SIZE, "0x%08x%08x\n", + device->config_rom[3], device->config_rom[4]); } static struct device_attribute fw_device_attributes[] = { @@ -723,13 +720,22 @@ static void fw_device_init(struct work_struct *work) */ if (atomic_cmpxchg(&device->state, FW_DEVICE_INITIALIZING, - FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) + FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) { fw_device_shutdown(&device->work.work); - else - fw_notify("created new fw device %s " - "(%d config rom retries, S%d00)\n", - device->device.bus_id, device->config_rom_retries, - 1 << device->max_speed); + } else { + if (device->config_rom_retries) + fw_notify("created device %s: GUID %08x%08x, S%d00, " + "%d config ROM retries\n", + device->device.bus_id, + device->config_rom[3], device->config_rom[4], + 1 << device->max_speed, + device->config_rom_retries); + else + fw_notify("created device %s: GUID %08x%08x, S%d00\n", + device->device.bus_id, + device->config_rom[3], device->config_rom[4], + 1 << device->max_speed); + } /* * Reschedule the IRM work if we just finished reading the |