From: Stefan Richter Date: Sun, 21 Oct 2007 08:43:11 +0000 (+0200) Subject: firewire: fw-ohci: log a note about unsupported features X-Git-Tag: firefly_0821_release~24686^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c74e92c209cf30ae6003e042e7c017eb6c370b64;p=firefly-linux-kernel-4.4.55.git firewire: fw-ohci: log a note about unsupported features because there seems to be more time needed to implement this. Also, change related error return values to more appropriate ones. Signed-off-by: Stefan Richter --- diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 2f307c4df335..e4b9a7d17afc 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -1459,7 +1459,7 @@ ohci_allocate_iso_context(struct fw_card *card, int type, size_t header_size) /* FIXME: We need a fallback for pre 1.1 OHCI. */ if (callback == handle_ir_dualbuffer_packet && ohci->version < OHCI_VERSION_1_1) - return ERR_PTR(-EINVAL); + return ERR_PTR(-ENOSYS); spin_lock_irqsave(&ohci->lock, flags); index = ffs(*mask) - 1; @@ -1778,7 +1778,7 @@ ohci_queue_iso(struct fw_iso_context *base, buffer, payload); else /* FIXME: Implement fallback for OHCI 1.0 controllers. */ - return -EINVAL; + return -ENOSYS; } static const struct fw_card_driver ohci_driver = { @@ -1898,7 +1898,12 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) ohci->version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff; fw_notify("Added fw-ohci device %s, OHCI version %x.%x\n", dev->dev.bus_id, ohci->version >> 16, ohci->version & 0xff); - + if (ohci->version < OHCI_VERSION_1_1) { + fw_notify(" Isochronous I/O is not yet implemented for " + "OHCI 1.0 chips.\n"); + fw_notify(" Cameras, audio devices etc. won't work on " + "this controller with this driver version.\n"); + } return 0; fail_self_id: