MBP, why I still use it

Despite the fact that I've been suffering quite a bit from OSX, I'll probably continue to use it at this point, because:

1. Fantastic keys in the keyboard. I really liked Thinkpad keyboards (my first laptop was Thinkpad 560, and I've been a user of T-series, including T43p). However, I really get to like MBP's keyboard keys. It has just the right amount of key travel distance, and spaced just right, and can be pressed small amount of force, unlike some other keyboards, yet it's not overly soft. In other words, it's the goldilocks of the laptop keyboard for me.
2. Battery life. T43p lasted barely 2 hours, and I used to carry extra battery. MBP lasts easily 4 hours, and more like 5 hours. Practically I can carry around all workday without charging.
3. Performance. Whatever I can say, MBP is fast enough for what I used it for. It's almost never a bottleneck for my use.

I'd guess #3 will be similar in other laptops with similar hardware. So it's not really MBP's advantage. That said, things I wish the most:

1. Page up/down, home/end keys. Out of all keys, I miss those four keys the most.
2. Fast way to cycle through the windows, instead of applications, without touching the mouse.
3. Less awkward keyboard shortcut for copy and paste (I guess I'll have to practice two-handed copy-and-paste - pressing c/v with left hand and right-command with right hand). If only left command key was slightly moved toward right, by reducing the space key a bit - as is, either I have to move my whole left hand/palm to press left command key with my left thumb, or my left thumb has to bend a lot to press it. Awkward either way.
4. Consistent keyboard shortcuts between applications. I'm still quite confused of shortcuts in many applications. Not the app specific ones, but more basic ones like beginning-of-the-line and end-of-the-line, page-down and page-up, beginning-of-the-page and end-of-the-page. And also how certain shortcut combos are treated differently depending on whether a textbox has a focus or not. It's all confusing and annoying. e.g. I mapped ^-T to be "New Tab" in Safari, but if the focus is in the text area, it doesn't open a new tab. Instead, I think it does "transpose" of the last two characters. :(

OSX pain continues...

Skype crashes on the startup. I tried deleting plist files (system default and personal), no success. Disabled firewall, no success. System is up-to-date and yet, Skype continues to crash upon login to Skype.

Then, Open Office didn't start up upon the first use. Had to force-kill it, then open up an existing file. Now it can start up without opening an existing file. But nonetheless very weird.

I tried mapping ^-C and ^-V as copy and paste for all applications, but it didn't work on Terminal. Then I removed the mapping for all applications, but the terminal application continued to show ^-C and ^-V as the shortcut and it didn't work. So, in that state, all applications except Terminal used %-C and %-V, but Terminal had no functional shortcut for cut and paste. Eventually restarting the terminal removed this annoyance, but it again shows the keyboard shortcuts (and its customization) are a very sore thumb in OSX.

Not all keyboard shortcuts are equal, part 2

I tried mapping ^-L to "open location..." menu item in Safari. And guess what? It doesn't work, despite the fact that the menu shows ^-L next to "open location..." item. I don't know what Safari does with my ^-L stroke. Of course, clicking a menu item "open location..." works. So it must be that something eats my ^-L in Safari. Arg :(

Chrome works fine, but Chrome-on-OSX isn't quite ready for prime time (it's already much faster than Safari, but there are enough things that don't work yet on Chrome, and it's also not quite as stable). So until Chrome becomes stable enough, I guess I'll have to suffer...

In OSX land, not all keyboard shortcuts are equal...

I think I'm giving up on using command key as the shortcut - it's just too awkward to use everyday. So I've ended up overriding a lot of shortcuts using control- combo. ^-C ^-V ^-X ^-T ^-N all know works as everywhere else, and with caps lock mapped to control, my thumb doesn't have to bend to press command and something else.

However, one inconsistency in Safari and Chrome still bugs me. I've remapped tab movements to be control-up/down both for Chrome and Safari. The problem is, in Safari, if the focus is in a text box inside a page, the new shortcuts don't work. What's funny is that the original shortcuts (control-tab and shift-control-tab) work fine even when the focus is in a text area.

*sigh*

So, on Mac, not all keyboard shortcuts are equal :(

Mac OS X: "Not enough disk space can cause directory corruption"

...at least according to one Apple employee named Carolyn Samit:

http://discussions.apple.com/thread.jspa?threadID=2086575&tstart=0

I was just looking for a solution to my MBP hanging problem, and encountered this particular post. I'm just hoping that this is just a clueless tech support type person perpetuating unsubstantiated personal opinion (which flies in the face of the basic principles of the operating system/file system design, and I'd almost interpret it as a slander/libel against OS X), but since I can't know if this "Carolyn" is a lowly tech support or Apple's filesystem engineer, I'll have to assume that this is Apple's position.

I tried to post a reply asking for clarification, and Apple rejected it. Below is the email Apple sent me about the removal.

Dear Seongbae (S. Park),

Apple removed your post on Apple Discussions titled "Re: Random freeze/not-responding in 10.5.7" because it contained the following:

Rude or inappropriate language
Non-constructive rants or complaints

We are including a copy of your post at the end of this email for your reference.

Our terms of use, which include helpful information about using Apple Discussions, is located here: http://discussions.apple.com/help.jspa We encourage you to continue using the Apple Discussions while abiding by our terms of use.

If you would like to send feedback to Apple about a product, please use the appropriate selection here:http://www.apple.com/feedback

As part of submitting feedback, please read the Unsolicited Idea Submission Policy linked to the feedback page.

Kind regards,
Apple Discussions staff

++++++++++

This message is sent from a send-only email account. Any replies sent to this address are deleted automatically by the system.

----------

A copy of your message for reference:

I'm suffering from this same problem, and this makes my new MBP 15" one of the worst systems I've ever owned in my past 10 years (the last time I remember having this kind of random instability issue is Windows 98).

I hope you're either joking or hopefully just half-informed when you said "Make sure there is always 15% free disk space. Not enough disk space can cause directory corruption".
What you're saying is essentially Mac OS filesystem can not function correctly with less than 15% free disk space. Can you substantiate this claim ? Since you're an Apple employee, can I take your word as an official Apple advice and publish this ?

Mac convert, another focus oddity

Try this with your Mac:

Fire up any application and have a window that has a scroll bar.

Then using Expose, switch to any other window that's smaller than the first window, so that at least part of the first window can be seen. Then move your mouse cursor on top of the first window (i.e the one that doesn't have focus), and try scrolling. The scrolling would work - even though the application itself is not in focus. It's as if scroll event uses "focus-follows-mouse" principle. Confusing? Hell, yeah. However, I'd still call this useful. If only I can type as well...

Mac convert, sync between Address book and Google Contacts

This article shows a complicated workaround - if you want to try this, make sure you read all the comments as well - to enable Address book and Google contacts sync. Why on earth Apple hides the Google sync option from Address Book's preference is anyone's guess. I find it incredulous that I have to edit plist to fake, and go through manually invoking a command on the terminal to get this working... Clearly this isn't something Apple wants to make users happy about.

Mac convert, week 2 - necessary customizations

I've ended up doing a few "jumping-over-the-hoop" type of customization to make this box more useable for me, and the following is the list so far:

Caps Lock as Control.

It's indispensable. However, this isn't as good as on Windows or Linux, because of Command-vs-Control split on Mac - on Windows or Linux, control key is the most frequently used modifier for keyboard shortcuts, hence having caps lock mapped to control naturally makes the most frequently access modifier key more accessible. That benefit is only half on Mac, because a lot of shortcuts use Command key instead of Control. While some of the key mappings can be changed to use control, not everything can (i.e. if there's no corresponding menu item). So I still have to press the awkwardly located Command key.

Auto-hide the menu bar.

When I run Chrome or Terminal, I rarely need the menu bar because 99% of things I want daily can be done through the keyboard shortcut or mouse gesture or anything already in the window that I don't want that precious vertical screen real estate wasted (especially given the vertically-short screen of MBP, the top is much more useful than the bottom - after all, at least the bottom third of the screen is outside the ergonomically comfortable viewing area, even when the MBP is sitting on a desk). I don't want the menu bar always hanging there. Thankfully, at least there's a way to change this through editing info.plist for each application. So now I have Terminal, Chrome, Safari and Picasa with menu bar hiding. This gives me back the nice, clean look of each application with more vertical real estate (if you haven't guessed yet, I have Doc also set to auto-hide). This isn't all happy news BTW. If you use Spaces to move windows to a different space, auto-hide menu bar sometimes breaks. I haven't figured out exactly when this happens, but when this happens, the menu bar will not hide even though you have set the property. So a workaround brings another annoyance by itself. Guh.

Terminal with FFM.

This only works between terminals. So it's not that big of a difference, but at least it's better than nothing. If only Terminals can get focus under mouse without getting raised...

Mac convert, what's broken in Mac OS X.

Now I've used MBP over a weekend. And I've decided there are a few things that are plain broken - that seriously prevents me from doing something or there's no good workaround - in OS X:

The brokenness #1: there's no support for "focus-follows-mouse" or FFM. Steve Yegge has a comprehensive post and I totally agree with him. Apple must be aware of this issue, since they provide a way to have FFM between Terminal windows (only between Terminal.app, not anything else). However, even ignoring the lack of FFM, I think the window focus system is broken because of the #2:

The brokenness #2: the false "application vs window" dichotomy. When I run a terminal, and launch an app (let's say a graphical diff tool), and then quit the app, the focus does not return to the terminal. Instead, X11 application (with no window at all, hence essentially useless) remains to have the focus, and I have to click the terminal to get back to my terminal. Same is true for any other app - if I launch a Finder window to do something quick in the middle of other app, and then close the Finder window, the focus doesn't return to whatever app that launched the Finder. Instead, the focus remains on the Finder app with no widow left. When is an app useful *immediately* after its last window is closed ? At least in my typical usage, 99% of the time I have the last window of an app closed, I don't need that app for a while. Otherwise, I wouldn't have closed it. If I closed all windows of Terminal.app, that means I don't need the terminal now. Ditto for web browser, and Finder. Or even for applications like Picasa,

if I closed its main window, it usually means I don't want that app for now. Rarely, I'd like to close the window, and open another one of the same app (Photoshop might be about the only exception to this rule). So why the heck Mac OS X keeps the focus on the application with no windows ?

#2 issue is also what makes the command-tab less useful than Expose. Expose treats all windows equally (regardless of which one belongs to which application) whereas command-tab is a list of applications, instead of list of windows - the chance of me wanting to switch to an app that doesn't have any window open through a keyboard shortcut is nearly zero.

The brokenness #3: the modal green + button. The button is actually a toggle button, that switches back and forth between pseudo-maximum mode vs normal mode. It's "pseudo-maximum" because the maximum is what the app decides is the maximum. Combine this with multiple tabs in a window (e.g. web browser), it becomes a trainwreck. It would be much more useful and straightforward if it were simply "maximize the window to fill the screen" or "maximize the window to fill the vertical screen" button. I *know* a lot of Mac users who don't grok this, cause I've seen many people using Mac laptop to do a presentation press the green button and get puzzled (I was equally puzzled every time I watched this, and now I at least understand what's happening but understanding doesn't make it less messy).

I have no doubt I can live with all these warts (after all, I have lived with Windows/Linux/Solaris warts for years), but I'm sure my annoyance won't stop. This isn't to say the other platforms are perfect, but it just shows that Mac isn't panacea and isn't THAT much better, if it's better at all.

Mac convert, day 3.5

Forgot one more annoyance. When I login to a remote machine using ssh with X forwarding, and I run some X program (e.g. diff or merge tools) from the shell. Then, the focus moves to the newly popped up X program (which is good). But when I'm done with that program and quit it, the focus doesn't return to my terminal. Instead, X application, without any application window, stays and eats my keys. Is there any way not to have this stupid behavior ?

Mac convert, day 3

Thanks to various people who pointed out how to remap the keyboard shortcut, I thought I was much closer to the keyboard shortcut nirvana than I was, but alas, the road to nirvana seems more elusive. For various reasons, I have to use two browsers, Chrome and Firefox. Anyway, I mapped "New Tab" to ^-T for all application, hoping that it will do the Right Thing, but alas, it does work for Chrome but not for Firefox. Firefox, for whatever reason, doesn't obey the new mapping - if I press ^-T, "File" menu gets highlighted, indicating that the OS X sends the some event to the firefox. However, Firefox doesn't do anything - even though menu bar shows the new mapping for "New Tab" command. Then, if I press command-T, it opens a new tab. Guh. This got to be a bug in Firefox, but it basically prevents me from using this new mapping (different shortcut for two very similar apps would be even worse than having no shortcut).

Now I'm using Safari and Chrome, except when I absolutely have to use Firefox (I need its proxy extension - where's the extension support for Safari or Chrome ?). I've remapped "Search Google..." menu to command-k, so now I can jump to the search box quickly in Safari (though I prefer Chrome's omnibox).

Anyway, I'm getting more used to the keyboard shortcuts, thing like home/end, page up/down, delete-word, and things of that sort. But I still feel like it's more clunky than laptops with dedicated page up/down and home/end buttons - I have to remember and switch between too many different modifiers keys. It's not a deal breaker but I wonder if all my efforts to deal with this conversion is worth the effort...

BTW, I've also realized that the MBP's keyboard doesn't travel as much as Thinkpad's - while the spacing is good, the short travel distance is something I'll have to get used to.

---

The system has been stable so far, so that's an improvement. I hope it stays this way.

---

One good thing about MBP: the screen is awesome. I didn't think much about Apple's claim of better color gamut, until I started copying back my family pictures. The MBP screen is orders of magnitude better than Thinkpad's when it comes to the color reproduction. This makes pictures and videos to be much more enjoyable.

Did I mention the machine is silent? Even when I'm copying gigabytes of my family pictures, I can barely hear seek noise and it's only because my bedroom is completely silent. I didn't hear anything during daytime with normal ambient noise.

Mac convert, day 2

This morning, I put the laptop into sleep before the commute. At work, I opened the lid, and the mouse pointer was hanging there with nothing - no dialog box to unlock screen, no progress bar, nothing, nada. *sigh*

I brought it to our tech support, and we ended up force shutoff again. This is bad. Very bad.

He updated the system to the latest. I hope it will fix the instability, but I'll have to see. I'm willing to give MBP some chance but it's not looking very good so far.

Another new downer: the edge of the unibody is just too sharp - it hurts my arm/wrist/palm occasionally. I hope this is something I can get used to, but clearly this little box is designed for better look than better tactile comfort (same for the Aluminum surface - it's not as comfortable to the touch as the hard plastic shell of Thinkpad).

I also found why big touchpad gets in the way - if I put my palm down from the normal typing position, the parts of my palms touch the upper corners of the touchpad. And then if I try to tap using right thumb, my left palm is still touching the upper left corner, making it a secondary click. So I have to consciously move my hands slightly apart (or rather, rotate slightly outward).

A few things I found out that helps me a bit: command-left/right are home/end, and option-left/right are move-word-left/right. Also command-up/down are page up/down. So at least I got my basic keyboard navigation back. But I still don't know how to move between tabs in Firefox or Chrome through keyboard shortcut...guess I'll have to search for it :)

Not everything's gloom and doom though. A few good things I can say about MBP:

It's fast. And having 4GB of memory is awesome. There's just no comparison how much more responsive the machine is - especially when I'm working full blast and have multiple browsers open with lots of tabs with lots of graphs, there's no "swapping" that used to make the performance suck on my poor T43p with only 1GB of memory. It also wakes up fast (of course, *if* it wakes up, that is) - from a regular sleep, it's quite fast to wake up. Not "instantaneous" but nearly so.

Also, it is silent - I haven't noticed any fan noise or hard disk seek sounds so far. I can vaguely hear it if I pay attention to it in a silent room, and it just is plain silent with normal ambient noise around me. Moving it around a few times today, I think I can hear small clicking noise, typically when the disk puts its head somewhere "safe" - I suspect the machine detects my lifting it up and moves the disk head somewhere safe, but I could be wrong.

Compared to T43p, the machine is less hot. It's probably because most of my daily tasks (lots of browser windows/tabs, and one terminal, and a few Finder windows, and a chat client) are not taxing its cpu much, but still the bottom becomes a bit warm during usage and that's it. I don't feel uncomfortable at all, and there's no hot air blowing out to the side either.

Mac convert, day 1

After 3.5 years with IBM T43p, I upgraded my work laptop to 15inch MacBookPro, largely because that was the model that had 4GB in our inventory. It's been almost 13 years since I've last used NeXTSTEP as my day-to-day OS, and during that 13 years, I've been mostly using Windows, Solaris or Linux as my primary desktop. My carpool buddy, who is an avid Mac user, recommended me to write down the things I ran into during my "conversion", so here's my first entry.

Day 1

Jumping from a single core 1GB ram box to a dual core 4GB box, MBP (MacBookPro) feels fast. But that's largely expected.

The first stumbling block: tap is not a click. The button is just too heavy to press every time I want to click something. Quickly solved by finding the system preference - I just do not understand why this isn't default. Then I kept seeing "secondary click" aka "right mouse button" click when I wasn't trying to do that. Turns out the pad is simply too big and very often part of my right palm (near the thumb) touches the pad when I try to tap the pad with the right thumb. Once I realized that, I get less of it, so it's not a total annoyance.

Then my great puzzling moment came when I pressed the green "+" button on the window, only to see my browser resize into a weird proportion. I couldn't figure out what's going on - I was totally expecting it to be just "maximize" button and it's apparently not as simple as that. My friend explained it to me on the way home, and now it makes sense, though I still think it's a bad design (the button is modal, but there's no sign of which mode it is in).

Fired up a terminal, and realized that I needed to remap the caps lock key. At least this is provided directly by the system preference, unlike Windows, which needs registry editing. Nice. However, my joy didn't last long, as I soon realized that control-L doesn't highlight the location bar in the browser (Chrome, Firefox, Safari) but command-L does. Ditto for control-T vs command-T. Copy and paste is the same. And there's no separate home/end key nor page up/down keys. And there's no proper "delete" key - the delete key does backspace. Arg. I think this is going to be one of the biggest huddles - the finger habits :(

After playing for a while, also realized that I can't do double-tap-and-hold-and-drag. Turns out the system preference has a setting for this. Whew.

Then came another puzzling moment, with command-tab - where is my "other" chrome window in command-tab list ? Turns out command-tab lists "applications", not "windows". OTOH, Expose does display all windows. Why they don't display the same list is beyond me. Then my friend tells me of command-` which is useful, but not quite as useful. This is another keyboard finger habit that I'll have to suffer through :( Setting upper-left corner as Expose trigger makes it a bit more tolerable, but still it sucks that I have to use touchpad for one more thing.

The biggest downer came late in the night - the spinning beach ball of death. I didn't expect to see it on my first day of the use, but I did. The network stack became completely wedged. I've tried ethernet, wifi, and 3G, all of the individually on and off but to no avail. So I decided to use the last tactic - reboot, but alas, the machine decided to go to the beach, and kept showing me the spinning beach ball for like eternity. I couldn't wait for long, so I had to power switch it off. I have no idea what kind of filesystem this box has (OS X 10.5.7) but I hope it's journaling.

I suspect 3G modem driver might not be up to the snuff, so I'll try not to use that thing unless absolutely necessary. Anyway, wifi was a bit finicky as well - though this might be more likely due to my wireless router than anything else.

There are a few other issues with applications. All in all, not a great day 1 experience :(

If this doesn't improve over the next month or so, I might have to return this and get a different box and get Windows or Linux.

A programmer is...

"A programmer is a person who passes as an exacting expert on the basis

of being able to turn out, after innumerable punching, an infinite

series of incomprehensive answers calculated with micrometric

precisions from vague assumptions based on debatable figures taken from

inconclusive documents and carried out on instruments of problematical

accuracy by persons of dubious reliability and questionable mentality

for the avowed purpose of annoying and confounding a hopelessly

defenseless department that was unfortunate enough to ask for the

information in the first place."

-- IEEE Grid news magazine

PS. Thanks to mjw :)

Dansguardian and pogoplug

I have two kids, 9 year old girl and 7 year old boy, and I've always felt somewhat unsafe whenever kids used the internet. Increasingly, my son seems to access more and more online contents, mostly to play online games and read pokemon tips.

The recent Chinese "Green Dam" filtering fiasco reminded me that I should do something about it sooner than later, so I decided to do it tonight. After a quick research, I've installed squid and dansguardian on pogoplug through ipkg, and downloaded the blacklists from URLblacklist.com. After that, I've changed the proxy setting on computers my kids use, to point to dansguardian, and it seems to work well.

My kids don't have great motivation to "defeat" any content filtering yet (they are not even aware of it), and given that it's more of a safeguard from accidents and malicious sites, I'm quite happy with the current setup. In a few years when my son becomes old enough (he's "only" 7), I'll have to set up a transparent proxy if I really want to enforce filtering, but untill then, this will be good enough. I suspect that when he's old enough, he would most likely have the internet access from his cell phone which I won't be able to easily filter. So by that time, "enforcement" won't really be effective or viable anyway (come to think of it, maybe I can try setting dansguardian and squid on android - how's that as an idea for a new android app - parental website filtering software for your young'uns :)

Putting my hard disk to sleep on Pogoplug

Out of the box, pogoplug doesn't spin down my Maxtor OneTouch Plus hard disk. Like most other hard disk drives out there, my disk is used for relatively short period of time every day. This means keeping it running wastes the electricity and produces unnecessary heat.

That situation changed with Spindown - I just installed it using the source. It requires "sg3-utils" but that's already included in Optware, so a quick "ipkg install sg3-utils" took care of that dependency. Once I've installed spindown, and edited /opt/etc/spindown.conf to manage sda and sdb (I have two disks plugged onto pogoplug), my disk stays cool and silent all day. As is, it's almost perfect - all important bases are covered. 

Of course, there's always something more, and in this case, I'd like to get software RAID 1 working - which would be really awesome. It would be even more awesome if somehow there's a way to get ZFS working but I know that won't happen anytime soon, if ever. Probably it will take less time (and work) to get BTRFS working on my pogoplug :)

Fan Club

Found this through Digg.com:

:)

Finally, the working combo of cups and pogoplug

Finally I got the remote printing working with pogoplug.

As I explained in my previous post, I've installed cups and splix, and created a "raw" printer with the usb printer as the device. However, I couldn't get it working only with those.

Then Google pointed me to http://www.owlfish.com/thoughts/winipp-cups-2003-07-20.html. I've basically followed this all the way, but STILL it didn't work. It turns out the last trick was to use the specific driver for ML1740 instead of Samsung's universal driver. Somehow Samsung Universal driver didn't work on top of cups IPP printer.

I suspect I don't even need splix, since the printer is raw and the driver is on windows side. This probably means any USB printer will work, as long as there's a driver on the client side. All in all, I'm very happy that both samba and cups work now.

Pogoplug performance

Now that I've hooked pogoplug onto a fully non-blocking gigabit switch, the network shouldn't be the bottleneck anymore (or if it still is, I'd be really happy) and so finally I have the setup to test pogoplug's performance. Feeling lazy about it, I decided to just run some file copy operations :)

Here's what I got:

First, I wanted to see pogoplug + Maxtor OneTouchPlus 750GB disk performance. The disk is formatted in NTFS, and is hooked up to pogoplug through a USB2 hub. 

I first ran a file copy inside pogoplug, that copies a single 1GB file onto the same disk (hence there's 1GB of read traffic and 1GB of write traffic onto the same disk). It took 232 seconds - this is sooooooo slow (only 2GB/232 ~= 8MB/sec). So I measured only the read speed by running "cat file > /dev/null" with the same 1GB file, and it only took 44s -- 1GB/44 > 20MB/s. 20MB/s read speed is quite reasonable :)

Now across the network, I ran "scp" from a windows box - this doesn't really test the pure network copy performance, as scp would require quite a bit of CPU power to encrypt the traffic. With scp, I got only about 2.2MB/s which I thought is somewhat abyssmal (this is on a gigabit network).  However, it turns out it isn't that bad, compared to samba. 

I tried copying over samba and gave up after waiting about a minute (at that point, the copy progress bar said 15 minutes left - this would mean nearly 1MB/s). So I tried pogoplug device (you know, the pogoplug's software that makes any drives on pogoplug show up as windows' local disk). It took 146 seconds to copy 1GB file from pogoplug to a Windows box - that's about 7MB/s. When I asked about samba to pogoplug support, they mentioned that their software is much faster than samba, and now I can believe that :)

While it's still not fast enough to hit 20MB/s disk speed bottleneck, 7MB/s is fast enough to saturate my 802.11g wireless network and probably fast enough to stream HD contents - I'll have to try that later to confirm. So all in all, I'm reasonably happy about the performance - when using pogoplug device directly at least - and looking forward to using it as a media streaming box :)

One good news and one bad news about pogoplug and cups

I've made some progress setting up cups on pogoplug. It's not working yet, but I feel like it's sooooo close. 

I first tried cups in optware packages, but somehow all binaries in the package gave me segfault.

So I downloaded cups-1.3.10 source, and compiled/installed it myself (after installing optware development tools - gcc, make, etc). Then I realized that the kernel has usblp driver, but somehow /dev/usblp0 isn't there (even when the printer is plugged in, and dmesg shows kernel recognizing it as a usb printer). So I created a device myself "mknod /dev/usblp0 c 180 0" - the major number and the minor number was taken from:

bash-3.2# cat /sys/bus/usb/devices/1-1.3/1-1.3\:1.0/usb\:lp0/dev

180:0

bash-3.2#

After this, cups backend recognizes the printer:

bash-3.2# /opt/lib/cups/backend/usb

direct usb://Samsung/ML-1740 "Samsung ML-1740" "Samsung ML-1740 USB #1" "MFG:Samsung;CMD:GDI;MDL:ML-1740;CLS:PRINTER;MODE:GDI;STATUS:IDLE;CODE:10001;"

bash-3.2#

I've installed splix as well. However, I've never setup cups manually before, and I was lost in setting up cups. After many trials and errors, I still don't have successful cups setup - I've tried two different paths, one setting up the printer as "raw", and have my windows box to install the printer driver on its side. And the other was to use splix and have windows recognize it as generic postscript printer. However, I couldn't get either of them working - generic postscript setup didn't work because cups was giving client-error-document-format-not-supported error with a message "unsupported format: application/postscript" or something like that. I don't understand why this is happening, as seemingly correct .ppd file is installed and configured for the printer... Then the raw mode somehow never worked either and I couldn't figure out why, and by the time I got to that stage, it was waaaay to late so had to sleep :/

If you're a cups hacker who can give some advice in this sitation, it would be awesome. It's so close to pogoplug nirvana....