[haiku-development] Re: Discovering the SDHC device on PCI bus

  • From: Jessica Hamilton <jessica.l.hamilton@xxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Sat, 12 May 2018 20:24:12 +1200

On Sat, 12 May 2018, 5:21 PM B Krishnan Iyer <krishnaniyer97@xxxxxxxxx>
wrote:

Hello everyone,

I am working on SDHCI MMC Driver. We were trying to find SDHC device
on PCI bus but at a condition[1], it's returning the value and hence
closing the program. It probably means the device is not on the PCI
bus. But "listdev" shows that there's a PCI device[2](emulated)

I have posted my project updates[3] which also has the instructions to
load the driver module. I am open to any idea or maybe I have missed
something. Feel free to reply to this thread.

Thanks,

[1]:
https://github.com/krish-iyer/haiku/blob/sdhci_mmc_driver/src/add-ons/kernel/busses/sdhci/sdhci_pci.cpp#L99
[2]: https://imgur.com/a/xDllebT
[3]: https://www.haiku-os.org/blog/krish_iyer


The first thing I'd do is split into separate if statements and print out
the error code and which statement fails. Hard to know without verbose
debug output.



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