linux-stable-rt/include
inaky@linux.intel.com 4370525167 usb/hub: allow hubs up to 31 children
Current Wireless USB host hardware (Intel i1480 for example) allows up
to 22 devices to connect, thus bringing up the max number of children
in the WUSB Host Controller to 22 'fake' ports. Upcoming hardware
might raise that limit.

Makes almost no difference to go to 31, as the bit arrays are
byte-aligned (plus an extra bit in general), so 22 bits fit in 4 bytes
as 31 do.

As well, the only other array that depends on USB_MAXCHILDREN is
'struct usb_hub->indicator'. By declaring it 'u8' instead of 'enum
hub_led_mode', we reduce the size of each entry from 4 bytes (in i386)
to 1, which will add as we when are doubling USB_MAXCHILDREN
(with 16 the size of that array is 64 bytes, with 31 would be 128; by
using u8 that goes down to 31 bytes).

Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-01 14:23:26 -08:00
..
acpi
asm-alpha
asm-arm [ARM] 3943/1: share declaration of struct pxa2xx_udc_mach_info between multiple platforms 2006-11-29 20:23:07 +00:00
asm-arm26
asm-avr32
asm-cris
asm-frv
asm-generic Add "pure_initcall" for static variable initialization 2006-11-20 11:47:18 -08:00
asm-h8300
asm-i386 [PATCH] i386: Fix compilation with UP genericarch 2006-11-28 20:12:59 +01:00
asm-ia64
asm-m32r
asm-m68k
asm-m68knommu [PATCH] m68knommu: fix up for the irq_handler_t changes 2006-11-20 10:16:49 -08:00
asm-mips [PATCH] make au1xxx-ide compile again 2006-11-22 23:34:02 +00:00
asm-parisc [PATCH] Fix incorrent type of flags in <asm/semaphore.h> 2006-11-26 16:30:29 -08:00
asm-powerpc [POWERPC] Revert "[POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class" 2006-11-22 12:13:36 +11:00
asm-ppc
asm-s390
asm-sh
asm-sh64
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86_64
asm-xtensa
crypto
keys
linux usb/hub: allow hubs up to 31 children 2006-12-01 14:23:26 -08:00
math-emu
media
mtd
net [NET]: Re-fix of doc-comment in sock.h 2006-11-25 15:16:51 -08:00
pcmcia
rdma
rxrpc
scsi [PATCH] add missing libsas include to fix s390 compilation. 2006-11-28 17:26:50 -08:00
sound [ALSA] version 1.0.13 2006-11-28 15:07:33 +01:00
video
Kbuild