Re: [patch 09/14] Convert from class_device to device for SPI

On Tuesday 21 August 2007, Tony Jones wrote:
> I believe this is the necessary documentation changes.

Thanks.  I have an update, plus updates for the mmc_spi
driver (now in MM) which you didn't update.

By the way, it's worth noting an incompatibility introduced
through these conversions and CONFIG_SYSFS_DEPRECATED=n:

 - previously .../controller/spi_master:spi2 would be a
   symlink to /sys/class/spi_master/spi2

 - now, /sys/class/spi_master/spi2 is a symlink to
   .../controller/spi_master (with DEPRECATED=n).

The symlink direction is just noise ... the issue is that with
this approach it's no longer possible to have one controller
handle multiple SPI busses!  A fix would involve maintaining
the original "spi_master:spi2" name.

I don't happen to know of such a controller, and one would
surprise me a bit.  Exactly like the fact that several I2C
adapters work that way was a surprise:  one PCI function
controlling several different I2C busses, rather than one
function per bus.

- Dave

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [patch 09/14] Convert from class_device to device for SPI
    • From: Kay Sievers <[email protected]>

• References:
  • [patch 00/14] More patches to convert from struct class_device to struct device
    • From: [email protected]
  • Re: [patch 09/14] Convert from class_device to device for SPI
    • From: David Brownell <[email protected]>
  • Re: [patch 09/14] Convert from class_device to device for SPI
    • From: Tony Jones <[email protected]>

• Prev by Date: Re: [-mm patch] enforce noreplace-smp in alternative_instructions()
• Next by Date: [PATCH] IdealTEK URTC1000 support for usbtouchscreen
• Previous by thread: Re: [patch 09/14] Convert from class_device to device for SPI
• Next by thread: Re: [patch 09/14] Convert from class_device to device for SPI
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]