diff options
Diffstat (limited to 'Documentation/debugging-via-ohci1394.txt')
| -rw-r--r-- | Documentation/debugging-via-ohci1394.txt | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt index 9ff026d22b75..981ad4f89fd3 100644 --- a/Documentation/debugging-via-ohci1394.txt +++ b/Documentation/debugging-via-ohci1394.txt @@ -1,6 +1,6 @@ - - Using physical DMA provided by OHCI-1394 FireWire controllers for debugging - --------------------------------------------------------------------------- +=========================================================================== +Using physical DMA provided by OHCI-1394 FireWire controllers for debugging +=========================================================================== Introduction ------------ @@ -91,10 +91,10 @@ Step-by-step instructions for using firescope with early OHCI initialization: 1) Verify that your hardware is supported: Load the firewire-ohci module and check your kernel logs. - You should see a line similar to + You should see a line similar to:: - firewire_ohci 0000:15:00.1: added OHCI v1.0 device as card 2, 4 IR + 4 IT - ... contexts, quirks 0x11 + firewire_ohci 0000:15:00.1: added OHCI v1.0 device as card 2, 4 IR + 4 IT + ... contexts, quirks 0x11 when loading the driver. If you have no supported controller, many PCI, CardBus and even some Express cards which are fully compliant to OHCI-1394 @@ -113,9 +113,9 @@ Step-by-step instructions for using firescope with early OHCI initialization: stable connection and has matching connectors (there are small 4-pin and large 6-pin FireWire ports) will do. - If an driver is running on both machines you should see a line like + If an driver is running on both machines you should see a line like:: - firewire_core 0000:15:00.1: created device fw1: GUID 00061b0020105917, S400 + firewire_core 0000:15:00.1: created device fw1: GUID 00061b0020105917, S400 on both machines in the kernel log when the cable is plugged in and connects the two machines. @@ -123,7 +123,7 @@ Step-by-step instructions for using firescope with early OHCI initialization: 3) Test physical DMA using firescope: On the debug host, make sure that /dev/fw* is accessible, - then start firescope: + then start firescope:: $ firescope Port 0 (/dev/fw1) opened, 2 nodes detected @@ -163,7 +163,7 @@ Step-by-step instructions for using firescope with early OHCI initialization: host loaded, reboot the debugged machine, booting the kernel which has CONFIG_PROVIDE_OHCI1394_DMA_INIT enabled, with the option ohci1394_dma=early. - Then, on the debugging host, run firescope, for example by using -A: + Then, on the debugging host, run firescope, for example by using -A:: firescope -A System.map-of-debug-target-kernel @@ -178,6 +178,7 @@ Step-by-step instructions for using firescope with early OHCI initialization: Notes ----- + Documentation and specifications: http://halobates.de/firewire/ FireWire is a trademark of Apple Inc. - for more information please refer to: |