linux/drivers/usb/class, branch v2.6.19

USB: usblp: fix system suspend for some systems

2006-11-03T19:57:18Z

this has been confirmed to fix suspend problems with usblp. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: failure in usblp's error path

2006-11-03T19:57:18Z

if urb submission fails due to a transient error here eg. ENOMEM , the driver is dead. This fixes it. Regards Oliver Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman

USB: fix suspend support for usblp

2006-10-17T21:46:31Z

this implements suspend support for usblp. According to the CUPS people ENODEV will make CUPS retry the job. Thus it is returned in the runtime case. My printer survives suspend/resume cycles with it. Signed-off-by: Oliver Neukum Signed-off-by: Vojtech Pavlik Signed-off-by: Greg Kroah-Hartman

USB: fix cdc-acm problems with hard irq? (inconsistent lock state)

2006-10-17T21:46:31Z

Signed-off-by: Jarek Poplawski Signed-off-by: Greg Kroah-Hartman

USB: Support for BT On-Air USB modem in cdc-acm.c

2006-10-17T21:46:30Z

The patch below is a necessary workaround to support the BT On-Air USB modem, which fails to initialise properly during normal probing thus: Sep 30 17:34:57 sled kernel: drivers/usb/class/cdc-acm.c: Zero length descriptor references Sep 30 17:34:57 sled kernel: cdc_acm: probe of 1-1.2:1.0 failed with error -22 Adding the patch below causes the probing section to be skipped, and the modem then initialises correctly. Signed-off-by: Chris Malley Signed-off-by: Greg Kroah-Hartman

IRQ: Maintain regs pointer globally rather than passing to IRQ handlers

2006-10-05T14:10:12Z

Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

[PATCH] const struct tty_operations

2006-10-02T14:57:14Z

As part of an SMP cleanliness pass over UML, I consted a bunch of structures in order to not have to document their locking. One of these structures was a struct tty_operations. In order to const it in UML without introducing compiler complaints, the declaration of tty_set_operations needs to be changed, and then all of its callers need to be fixed. This patch declares all struct tty_operations in the tree as const. In all cases, they are static and used only as input to tty_set_operations. As an extra check, I ran an i386 allyesconfig build which produced no extra warnings. 53 drivers are affected. I checked the history of a bunch of them, and in most cases, there have been only a handful of maintenance changes in the last six months. serial_core.c was the busiest one that I looked at. Signed-off-by: Jeff Dike Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

USB: fix __must_check warnings in drivers/usb/class/

2006-09-27T18:58:58Z

Signed-off-by: Greg Kroah-Hartman

USB: usblp: Use usb_endpoint_* functions.

2006-09-27T18:58:53Z

Signed-off-by: Luiz Fernando N. Capitulino Signed-off-by: Greg Kroah-Hartman

USB: Make file operations structs in drivers/usb const.

2006-09-27T18:58:52Z

Making structs const prevents accidental bugs and with the proper debug options they're protected against corruption. Signed-off-by: Luiz Fernando N. Capitulino Signed-off-by: Greg Kroah-Hartman