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location New York, United States
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visits member for 3 years, 6 months
seen Apr 14 at 13:41

Mar
31
awarded  Nice Question
Feb
10
comment What is the difference between USB charging and AC charging?
Is there any reference that says they follow the USB.org charger spec? Apple, Sony, and HP do not. Do all HTC phones?
Feb
10
comment Are Android chargers universal in terms of power (Voltage, amperage)?
"Do some chargers try to force 3000 mA down the wire to supercharge their devices?" No, that's not possible. The charger determines the voltage (always 5 V for USB), and the phone determines the amount of current drawn.
Feb
10
awarded  Excavator
Feb
10
comment Why is charging from computer using USB slower than using an outlet?
Shorting pins 2 and 3 together is the official USB charging spec, but not all phones and chargers follow it. Sony and HP and Apple have their own proprietary connections.
Feb
10
comment Why is charging from computer using USB slower than using an outlet?
@ChrisThompson while definitely true for now, the USB org decided to confuse people even further, and added multiple supply voltages to the USB 3.1 spec. Only after lots of confusing negotiation, of course...
Feb
10
revised Why is charging from computer using USB slower than using an outlet?
clarify some things, fix unit capitalization, etc.
Feb
10
suggested suggested edit on Why is charging from computer using USB slower than using an outlet?
Feb
10
comment Why are some USB chargers slower than others?
It's not just "USB charging spec vs Apple spec". There are several other configurations as well. See the datasheet for the ti.com/lit/gpn/tps2511, which tries to interface with all of them, and righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html, which reverse-engineers several.
Jan
15
awarded  Popular Question
Oct
12
accepted How to find the pathname of the swap partition on SD card?
Oct
12
awarded  Benefactor
Oct
11
awarded  Self-Learner
Oct
11
awarded  Yearling
Oct
10
comment How to find the pathname of the swap partition on SD card?
Aha! fdisk -l /dev/block/mmcblk1 says /dev/block/mmcblk1p2 30637 31152 132096 82 Linux swap
Oct
6
revised How to find the pathname of the swap partition on SD card?
added 111 characters in body
Oct
6
answered How to find the pathname of the swap partition on SD card?
Oct
5
revised How to find the pathname of the swap partition on SD card?
added 124 characters in body
Sep
28
revised How to find the pathname of the swap partition on SD card?
added 130 characters in body
Sep
28
comment How can I view the Android internal partition table?
all I get is dev: size erasesize name whether I run as su or not. android.stackexchange.com/q/53225/693