- 01 Dec, 2002 1 commit
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James Simmons authored
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- 29 Nov, 2002 1 commit
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James Simmons authored
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- 27 Nov, 2002 9 commits
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James Simmons authored
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James Simmons authored
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Greg Kroah-Hartman authored
into kroah.com:/home/linux/linux/BK/gregkh-2.5
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Stuart MacDonald authored
1-fix-lowlat: QA found that running all four ports at 460800 would drop data. I traced it to data being dropped in the read callback because the flip buffers were full. Turning on the low latency flag fixed things. 2-fix-taint A side-effect of turning on low latency; the interrupt context from the callback is now passed through to the tty layer, passing it on to calls back into usb-serial.c. Which causes deadlocks when trying to re-acquire the per-port semaphore. We've already talked about this. This patch is my work-around for the usb-serial.c brokenness. Basically, implemement a buffering scheme, and schedule a software interrupt to handle the data handoff to the tty layer sometime later. urb_pool_size defaults to 8, but is a module parameter and can be modified at runtime. The buffering is needed so that the driver can run while data is waiting to be processed, but I could have used the tty layer scheduling instead of doing my own by turning off low latency. However, I looked at the tty layer and it seems to me that there's nothing preventing a really fast device from flipping one buffer, flipping the next, and flipping back to the still full buffer from before (actually, the flip just gets scheduled for later), so my driver needs to be able to hold onto buffered data and schedule them for processing later anyway. So, might as well leave low_latency on. diff -Naur linux-2.5.49-0-virgin/drivers/usb/serial/whiteheat.c linux-2.5.49-1-fix- lowlat/drivers/usb/serial/whiteheat.c
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Stuart MacDonald authored
Attached is a patch that changes the 2.5.x disconnect to be similar to 2.4.x disconnect. This doesn't fix the race, but does shrink the window such that I've never seen it trigger, even under testing designed to do that. There doesn't seem to be a good way to fix the race. The fix should be to have _disconnect force any sleeping semaphore holders to run to completion between the end of the loop in the patch below and the spot where the underlying memory is freed, but I don't see a way to do that. diff -Naur linux-2.5.49-2-fix-taint/drivers/usb/serial/usb-serial.c linux-2.5.49-3-fix-drvdata/drivers/usb/serial/usb- serial.c
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John Tyner authored
This patch cleans up the vicam_decode_color function by removing unused/useless variables and combining the two "x" loops inside the y loop into one. It also reduces the number of times that the "x" loop occurs from 512 to 320 which should provide a decent speed increase. It also fixes a bug in the y loop that wrote beyond its bound.
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Nemosoft Unv. authored
After a little absence, here's a patch to bring the Philips Webcam driver up to version 8.9 (skipping 8.8 which has been available as a download on my website for a while). This patch is against 2.5.49, and includes some of the following: * New USB IDs for Logitech and Visionite webcams. * Better URB link/unlink sequence when opening/closing device and switching resolutions. * Adding probe for CCD/CMOS sensor type. * Removed remnants of YUV420 palette stuff. Also updated the description in 'Kconfig'.
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Mark W. McClelland authored
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Ganesh Varadarajan authored
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- 26 Nov, 2002 29 commits
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James Simmons authored
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Miles Bader authored
Add `unlikely' to error-return path in v850 __syscall_return macro
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Miles Bader authored
Shrink v850 exception-trap handling code a bit
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Miles Bader authored
Change type of v850 function `gbus_int_disable_irqs' to void
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Miles Bader authored
Make v850 syscall6 macro support both old and new gcc versions
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Miles Bader authored
Add id for v850 `nb85e_uart' to serial_core.h
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Miles Bader authored
Give a compile-time error on the v850 if MAX_ORDER is too large
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Miles Bader authored
Make the v850 leds driver's seek routine always return a value
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Miles Bader authored
Update make variable used by initramfs `binary blob' creation on v850
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Miles Bader authored
Change the default baud rate of the `nb85e_uart' driver to 115200
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Miles Bader authored
Tweak some v850 name strings [basically only affects printed output]
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Miles Bader authored
Random whitespace tweaks in v850 files
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Miles Bader authored
Add my name to CREDITS file
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Miles Bader authored
Update includes in v850 files to reflect recent header changes
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Miles Bader authored
Update v850 to use kstat_cpu in irqs.c
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Miles Bader authored
The v850 doesn't need sys_old_getrlimit
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Miles Bader authored
Add TASK_UNMAPPED_BASE for v850
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Miles Bader authored
Update v850 usage of do_fork to supply new args
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Miles Bader authored
Add v850 support for initramfs
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Miles Bader authored
Random minor fixes for v850 `anna' platform
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Miles Bader authored
Update `nb85e_uart' driver for recent serial framework changes
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Miles Bader authored
Make NB85E_UART_CKSR_MAX_FREQ (in nb85e_uart driver) overridable [The proper value is CPU-dependent]
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Miles Bader authored
Add v850 nanosecond stat fields
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Miles Bader authored
Add support for AS85EP1 platform to v850 arch
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Miles Bader authored
Add v850 versions of dump_stack and show_stack Also move v850 show_regs to same source file (bug.c)
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Miles Bader authored
Add v850 support for new module loader
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Miles Bader authored
Add asm macros on v850 so the size of asm data objects can be recorded [This just makes it easier to see the sizes using readelf or whatever]
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Miles Bader authored
Fix some minor type problems in v850 code [Mostly signed/unsigned mismatches]
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Miles Bader authored
Consolidate various v850 platform banner printks
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